I love my Z2, it's been a champ all season.
I actually had my first jam ever the other day, but that was from the cheap $20/case paint. Had a ball shaped like a Mentos that got jammed in the feedneck
other than that, no problems
Have you ever gone to John's (Railagainst on CPF) outdoor by Gull Lake? He used to play @ Busters when I worked there. Really nice dude and his set up looks sterile (better than legit money-making fields I've played at in the past).