I noticed that in the last few fw updates my presets have lost some of the "silky" top end (ac30tb > silvers / blues) and i cant seem to get in back with any amp settings, so i was thinking to add some air in the cab block, which sounds good on clean tones but add some harshness to overdrives. Thoughts? Just curious how people use it or if anybody has managed to get some air from the amp block without actually using the air in the cab block.