My '67 Vibro-Champ is sick and needs a 500K mile service. While I am at it should I have any mods performed on it? I know it's a classic but there are zillions of these around. So far as I know it is bog-standard but it has always sounded rather "shrill" to me at full wack. 1. I'd like to keep the tremelo (it's the only one I've got) 2. Anyone know a good amp tech in Central New Jersey (nr Westfield). Thanks upfront for advice. Pete.