I have a friend that just ordered the surf green sawtooth. I'm going down to visit him in knoxville and I wanna upgrade it for him (out of spare parts) a bit and maybe file the frets down so it plays smooth. I have several alpha pots but I need to get rid of some CV import switches, would that switch be an upgrade for this guitar? I also have a GFS fatbody alnico bridge. Do you think these are solid upgrades for these guitars?