Hi Doug,
I have a Canon GL2 and never record in LP (ONLY in SP). When bringing my footage into Vegas I had the same problem. This was after I had my GL2 sent to Canon for a check up and a good cleaning for $100. After viewing these post and learning from other videographers experiences, never use your good camcorder for downloading your footage into your computer. I bought a cheap Canon Z100 from Sam’s club and now my pixilation problem is gone. Less wear on the heads. So, Canon GL2 for capturing and Canon Z100 for downloading.
I hope this helps.
Ralph Hajik
Westmont, IL