Another Drill to try. I'm a huge fan of filming training sessions for critique later. For instance, this video clearly shows the ridiculous little hop or shuffle I have with my trail foot rather than simply launching. It also shows that I can make my launch a bit better by leaning my upper body toward the direction I need to go.
I love comparing videos of myself to the pros so I can get a good side-by-side look at what they do that I need to work on.