You're right, thanks for the tip man. I usually like finishing that best on my side or belly down because of Herzog's 'don't let 1993 happen again' rule (pretty sure that's the quote :P). I actually just had 4 gi fights and was just looking to get some fights out of the way quick so I saw it as soon as I propped down and went for it. Just because I had it in deep and knew I had it, I started to arch and cranked to finish, preparing to use my outside leg to kick him down if he even attempted to prop up. I should've turned over on my side or rolled to my belly. I'm just terrified of getting dq-ed for knee reaping if my leg slips over or something in the roll to my side or belly, which I've seen happen plenty of times before, as pretty much all the tournaments up here follow ibjjf rules and straight ankle locks are the only leg attacks we can do til brown belt and reaping is strictly prohibited.