Ross: >> You do the same thing when you use the externally (Trigger by the B-Gate Output), Bench Scope lower trace later in the procedure.
Thanks, Ross. Yeah, I think you (and others) are right. I re-did the horizontal cal yesterday and noticed the same thing while doing the whole calibration with overlapping B Sweep waveforms. In checking the results after cal, it is definitely more accurate than before. I have not yet checked the intensified sweep feature yet though, just the basic A-only sweeps and the one where you enable X10 and check the delta-t's while overlapping the odd numbered time marks. They were all spot-on.