Countdown, my opinion is your character is missing a legitimate finisher.
I think spine busters are usually set up but you could go with it and while you could go with the heel hook I think it would be weird to have a submission be a hardcore brawler's finisher. A monstrous missile dropkick could work too like Daniel Bryan's and your body splash has no stars...if you catch my drift. xD The chair and super-plex seem too gimmicky to me to be counted as finishers. Other than that I think David is good to go.
I was thinking also, Knight, is it okay if we separate our moves into a finisher and signature section, like Zenpai? I was thinking maybe two finishers and four signatures? Something along the lines of the Smackdown games. Two and two could work too.