Scott,

May be the PSR 2000 software version is different. No problem on mine.

On my PSR 2000 I have no problem to make Registrations Memory with Left, Layer and Main voice (only) and after use this Regist with several styles. This is, I change from e.g. Regist 1 to Regist 2, without PSR 2000 changes the style, or I change the Style without change the Regist.
For that, only I don't check the box "Style" in Regist Memory Contents.
It works properly.

So I guess the software version it's not the same.

Carlos Rodrigues