Let's just start I've been Rt member since 2012..everyone on here has high end boutique guitar gear . No one takes there boutique or vintage head to guitar center..we all have connections in the industry by the actual builder or have a friend who plays in a touring band. I did guitar shows for years met alot of owners & guitar & amp builders .I've been a guitar collector fot years, like everyone on this forum..I can take my Marshall over the bridge to St . Petersburg to Grandville guitars. Scooter is an amazing pro amp technician but he doesn't do mods..David Bray is a fantastic Marshall tech. Ala Van Halen tone! Armored amplification in Ft .Waltin beach Florida builds great custom amps & will do jose mods, etc..there's Kruse kontrol in LA who mods dozens of guitar amps..the list goes on..shipping a 100 wt. Marshall is expensive both ways So any recommendations for the best guys to work & mod modern & vintage amps will be appreciated..thanks