Madman6: First two hit were ok, weak though. The decap was meh, I didn't like how you extended your knees as soon as you got the cap, it looks weak though in certain circumstances it looks good. The first leg DM pretty crap, just clapping your two grabby hands together. The last DM was the worst, it was slow but it looked like you were preparing for the boom of your life and all you do is once again, clap your grabby hands together.
The rest of your madmen is basically the same advice. Less grabby and boring DMs, more power etc.
Upside Backwards: Would've been nice if you didn't break your leg and got a decent boom.
Decap, 2, 3: These were pretty boring, though, most "just decaps and nothing else"'s are.
Overall, stiffness isn't a problem, you just gotta work on getting more speed and power and more exciting hits.