I've not noticed any discrepencies from the estimated time vs. the actual time...it's always been right on, as far as I can tell. So I don't know what would cause the time difference you are experiencing.

Also, it is my understanding that the quality setting at the machine has no affect at all when running projects. The quality settings at the machine itself apply to machine functions only (not projects run from the memory card). For example, machine functions would include bevel and miter cuts - things totally separate from running actual MPC projects from the memory card. The machine quality setting applies when running "machine only" tasks, not MPC's.

If I'm wrong about this, I am sure someone from LHR/CarveWright will let me/us know.