a/ i do that anyway,
b/ CDJ800's i personally find the pitch pretty annoying. It's accurate, yes, doesnt waver, yes, but the pitch increments go up in .05 which is annoying. The 1000's go up in .02 which is deadly accurate (with 6% pitch switched on) and obviously technics are anologue, so i guess they're amazingly precise, but you have the wow and flutter.
This is why i still, after all these years prefer mixing on technics, i find the 800mk2's difficult to mix on personally.