Thanks Kev !! How the hell are ya ?? I've never had any complaints whatsoever about the '75 ?!?!That amp will cut through the mix no problemo,mind you the dirty channel is nothing to write home about,but she can hold her own against Marshalls or Mesas'.She just plain Kicks Ass!! BTW,,It really was'nt P.Rivera that designed it , it was some other dude and i can't remember his name.Everybody thinks that it was Rivera but he only had a small part in the design,He was head of R/D with Fender at the time.