Bit late to the party, but that guitar finish is off the charts good
I've got an old black Jackson Dinky I'm looking to do something similar to by trying to emulate the finish on the Mean Street Frankstein Pipeline, but I'm not totally sure what's the best approach. Did you apply cut matt vinyl over an existing black gloss finish or spray matt lacquer over a gloss black finish? It appears Mean Street sprayed matt lacquer over black gloss as the the switch gear, pickups and plate have a similar matt finish.
Any thoughts much appreciated.