Figure I should start my own thread instead of spamming
@fretmeister's again (though I must say he was good about it)
High level I'm in the process of replacing a bunch of guitars with bitsas. However, instead of doing one at a time like a normal person I'm doing loads at once for maximum stress
After some false starts I'm beginning to have success finishing necks. This is my patient zero, finished and stripped twice so far:

For my third attempt I freshly sanded the surface and worked the first coat in with some pressure. To me it looks like this opened the fibres and helped pop the figure, there's a dark fuzziness to the grain that wasn't there before, but this could be confirmation bias
On the very first coat after a minute or so I had dry patches appear
, so I kept reapplying until there were no dry spots. My thinking was to flood the surface before it polymerised and blocked the entrance
I started using folded up kitchen paper like in the picture to apply my coats. Every other method I tried was a shit show. You can dunk the paper straight in the bottle without decanting so it's tidy and efficient

Things I wish I'd known before I started:
- Wet the surface and don't touch it after that (don't even look at it)
- Best results with at least 3-4 hours between coats, max 3 per day
- If you get oil on your hands mix some cooking oil in before washing, gone instantly
Here are another couple which are pretty much done. I used nitro aerosol for the headstock faces because the decals react badly with oil:

I used Liberon oil on the plain maple to get this nice golden colour:

Once the oil has hardened (a week or so) you can use Renaissance wax on the back to get it extra slick. Amazing stuff
Comments
Fancy a laugh: the unofficial King of Tone waiting list calculator:
https://kottracker.com/
My usual way is to scuff the face with scotchbrite and leave it submerged in Rit synthetic yellow dye for a few hours. The dye isn't cheap but you can decant it back into the bottle when done.
I have this old baking tray I use:
There was no reaction after a few hours so I left it overnight:
When I checked this morning there was still no reaction, so I went nuclear and heated the dye to a simmer on the stovetop:
The dye did take in patches, but it was blotchy and I wasn't able to control where it happened
The main difficult was getting the right temperature, it only seemed to work when it was hot enough to warp the pickguard
I'd come this far so I just went with it, and flattened it best I could afterwards between two plastic bags with a heavy book:
This was the result:
The whites were really bright so I scribbled over it with a graphite pencil and thumbed it into the abrasions
Wasn't sure about the yellow edges so I sanded them with a 120 grit sanding block. I was going to do that anyway to get rid of the cutting marks
This is how it came out:
It's not what I expected but it's not too bad. I've seen old ones with blotchy patterns like this. I think it would have come out better if it had been a yellow/ivory colour to start with
I'm okay with the warping, once it's screwed down it'll look like shrinkage, but I was planning to use it as a drill template which probably isn't a good idea now
Instagram
Went in for round 2 and happier with the result now:
Instagram
Light patches from wear seem to be common
I'm quite happy with it after that second go
Lessons learnt:
- prepare a space to squash it flat before you start
- wait until the dye is boiling, then get it in and out fairly quickly
The True Velvet is staggered meaning the Mustang style cover wouldn't fit. I cut out two small bits of surgical tubing to use as spacers and they seem to be doing the job:
Was going to just do simple tone/vol + 3 way, but I bottled it and added push pulls to the bridge pickup for series/parallel and phase reverse. That means running the signal from the pickguard to the control plate and back to the pickguard again which is what I had originally wanted to avoid:
The ground wire from the jack to the pots is probably unnecessary but only costs a wire
A fixed resistor at the switch corrects the loading for the neck pickup
Improved my own designs while I was at it. The JM looks a bit naff as is but it's ready to buff now so will crack on with the option to redo later
Edit: Is it the 'Daffodil Yellow DyeMore for Synthetics Liquid Dye'
http://www.thefretboard.co.uk/discussion/89942/caspercaster#latest
I've got a feeling it warped slightly during the process so recommend screwing it in first to get the holes in the right place before gently melting it lol. It might be that I was just too aggressive with the heat and a lower temperature will do
I got the idea of maybe screwing it into a thin piece of wood to stop it curling up, but who knows. Could just warp the screw holes
The wiring fit okay. One thing I would say though is the control cavity is much deeper than cutouts, and getting those fat twists of wires around the body of the push/pull and over the lip of the cavity was touch and go
I do have a slight problem however lol:

It's fine though - I think I know what's happened. Another control plate is on its wayMy plan has been to take them in for nuts and frets, but I'm starting to wonder what I could potentially do myself. Probably about time I learnt how to file and dress a nut. I think at the very least I can stick a nut on and string it up so I can get some of the setup out the way, neck angle, trem balance etc
What I ended up doing was scrubbing them smooth with steel wool, then applying one last coat and leaving to dry for a few days. Then I polished the last coat up to 12k grit with polishing cloths, and finally some renaissance wax
It gets really glossy with the polishing cloths, probably didn't need as many coats as I thought to get them like this:
Test fit last night:
I got the thimbles and ground wires in, then set about ageing the pickguard.
Fresh scratches never look any good on black so I buffed them out with brasso and that worked well. Then I yellowed the edges in boiling dye:
The pickguard did curl up and dye like the last one but I figured out how to straighten it out again. Just squash it flat under something heavy and point a hairdryer at it:
Then I drilled some holes in it for my momentary switches. I made a rubbing of the cavity and stuck it over the guard to help with positioning:
Settled on this:
It looks a bit like it's got warts but I guess there's no way around that. I left enough clearance around the toggle for it to rotate all the way around
The buttons are IDEC brand, made in Japan and rated for 1,000,000 presses lol. The reason I use them though is how they feel - you press them down a little bit and they spring the rest of the way themselves
Next time I will do drilling before ageing in case it goes wrong. That was silly
http://www.thefretboard.co.uk/discussion/89942/caspercaster#latest