Hi:
I would recomend to use the "Multifinger" mode in your case, is new to you, because it debuted this mode in the PSR 1000/2000, 1100,2100 and now in the 1500,3000 plus the Tyros 1 & 2.
THis feature is like a combination between your fingered 2 mode and single finger. I hope it helps you.
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mdorantes