Bill,

From what I understand, Korg make their own keyboards/actions, light, semi-weighted, and heavy...they also used to employ Yamaha keybeds at one time.

I didn't know that Roland made heavy action arrangers(unless you are referring to the KR-series)...the G70 is a semi-weighted action.

The T2 uses a semi-weighted action as well....AND Yamaha also make heavy(weighted hammer) action arrangers in their CVP line.

I was under the impression, at least from what other PA-800 owners report, that the keybed was very satisfactory....but to each their own.

Ian