For me it would be great if there was a way to mute the vocal on the Performance and Jam Tracks. I find the guys voice very distracting when I'm learning or practicing. Don't get me wrong, he has a great voice (I wish I had 10% of what he has). But when I'm concentrating on practicing the correct notes and timing he throws me off. Some may find it helpful, especially in timing. So having a choice would be best for all.
[Epiphone Les Paul Standard Plus Top Pro (2), Fender Player Stratocaster (2), Squire CV 60's Stratocaster, Hamer Ecotone, Yamaha APX600 (2)]