#1
bridge pickups of musicman john petrucci signature guitar 6 strings and 7 strings. are they the same except one is reversed? at dimarzio.com there are dp207 (d sonic) and dp706 (d sonic 7), so im a bit confused.
#2
Ones a 7 and ones a 6 string. if your talking about the bar magnet i've seen it installed bothways commonly. Even petrucci has it installed different ways on different guitars.