Hello Earl!
Don't really know what works for you, and have never tried BIAB.
I don't read music, and I seldom play complicated songs, so I use registrations when I must (when there is too many button presses and too few fingers
). I edit the styles, mostly only by changing some volume and the OTS, and give the style the name of the song. When I play for people I put together a "gig list" by putting the styles in a folder, and that is that.
I never play with backing tracks or MIDIS, but use them to learn songs
I have the PSR 2100, and it still works. I love that keyboard, my only complaint is the screen! And all the flolly disks. I have the Genos, Tyros 5 and PSR S-975, but STILL think that in some ways the 2100 sounds better