Boyd's uses a thinned down laquer, that has a slightly matte finish on their stocks. It's a good, durable finish and takes a lot of abuse
Depending on what wood is under the coating, it can penetrate quite deep and be difficult to ''sand'' out or remove with chemicals
I have removed their finish, after contacting them for advice.
They suggested a very light sanding with emory cloth and just applying a coat of a type that I found more suitable.
Getting their stuff out of checkering, requires a lot of elbow grease, with a very stiff polymer tooth brush.
Don't use wire types as the round off the checkering tips.
I ended up sanding with 400grit wet paper, then applying a thick coat of Colonial Gel Coat and leaving it on overnight.
When I tried to wipe it off, it had already hardened and I had to wipe it down with ACETONE to soften, then scrape it away with a razor blade.
I used 800grit wet paper to smooth everything up, while covering the checkering with masking tape.
I use 10% or less "Linspeed" mixed with 90% or more Acetone and apply very thin coats to the stock, to achieve the finish I desire.
I very lightly sand the second to last coat and use a 5% Linspeed mix to finish it off.
This leaves me with a dull shiney finish.
If I want it really shiney, I use a 50/50 mix to apply on the last coat.