Aha! I didn't read closely enough, so I didn't see you were using the autocalibration. I'd check that manual to make sure it's not just doing DD. I don't have a 2805, so I don't know exactly how it works, but my H/K has separate calibration for everything, which can get a little tiring, let me tell you!

I am the Doctor, and THIS... is my SPOON!