I would not go for a 61 if 76 was available.
G-70 and SD1 has lovely keybeds, and if Genos, or PA4X-76 (to me it most likely going to be Korg) match that great keyfeel, I'm looking forward to lay hands on it.
Also 76 give more room when split. Size is OK, I don't drag keyboards around to gig anymore.

(Wersi Pegasus Wing does also have 76, but that's another story.... )