One Wheel
Member
It is quite possible to choose orientation on 5BLD too; several of us do it regularly. But I admit I don't know if any of the fast 5BLD people choose orientation.
I only ever choose from the 6 easy orientations, but I know François Courtès chooses from all of them. It's actually one of the most fun things about 5BLD for me, when it's useful for a given solve.
Uff da. So much for that argument. I was figuring with the fixed centers it would be more like 3BLD that way. Got a better argument for keeping 5BLD than the fact that it's mind-numbingly awesome? I'd be happy to advocate for 6 and 7BLD, but I understand the logistical difficulties with that.