Got my T2 at 3:00 and played it on the job at 6:30. I STILL have set up only one bank of Registrations, and it's been a couple of months now. Not the best way, but I've been too busy to deal with it.
Of course I had a Tyros, PSR2100, 2000, 9000, 8000, 740, 640, 510, 500, 6300, 6100, 70 previously, intermixed with all the other brands.
Technics used to be really easy to use on the fly also.
The hardest was Korg PA80, Ketron X1 and Roland G800 (sorry Fran), but that was most likely because I wasn't familiar with the OS when I got them.
DonM