so i picked up a roadster 2x12 combo for 1900 (because there was a scratch on the tolex). the guy told me that he's pretty sure that it had the update done when mesa emailed the dealers about it... he couldn't guarantee it tho which makes me kinda nervous. anybody know exactly what it would look like after its done? i can take a pic and post it or something... i'd really like proof positive that it was updated. anyway, i got it home and it sounds amazing, heavy as a ***** tho. i got some great sounds already and can't wait to experiment more. i did hear some popping when i switched channels, but like somebody said earlier it seemed like it only did it once or twice when switchin to/from the high gain channels from static buildup or whatever it is. i'm going to read the manual from start to finish, but i'm sort of unsure how to get the solo boost working. it said to turn the FX loop on and to flip the switch in the back so its not bypassed and when i do that i get the solo boost but nothing when the solo isnt engaged... maybe i'm just being dumb and new to high end amps...