That pretty well sums it up. I also prefer the OCD, some one else has my fulldrive now.Fulldrive is has more mids, a little fatter and not as much gain.
OCD has more of a scooped marshall thing about it.
I prefer the OCD to the Fulldrive myself. I even owned 2 OCDs at one time, one was gained up the other lower.
Do you guys use it with 18v? I ended up getting the 18v Dunlop after going through way too many batteries (made up a box with 2 9v). To me, there's way more "marshal" in there using 18v.