Maybe don't ditch the Boog Maybe try them with both hands and then throw in some if your own licks and fills. Kinda two birds. The trick like anything else is slow but I'm too damn impatient. I never thought I'd need a metronome in a keybaord but use the FP90s all the time. Really shows you how off you can go with tempo.
Have fun with the accordion, a great niche to have mastered.
Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer