Not the best video of me, but i figured I'll post it.
It was actually a really good training tool for me because, I realized that I was neglecting my entire lower body on my serve, especially on the 2nd serve. Also, realized how out of shape I was (although I haven't done much about that haha)
This is during a doubles match in college a couple years ago, starting in the opening game in the match, I'm hitting a really bad second serve.
15-0 my big forehand forces an error
15-15 my backhand shank leads to an easy putaway volley
15-30 i badly overhit on a running forehand
40-30 Service Winner
40-40 DOUBLE FAULT FAIL My reaction is funny, little gay boy double faults
Deciding Point , I hit a good backhand, but my partner fails on the the next volley (you can actually see my disappointment, we actually didn't get along at all haha)