Most definitely try to do the intro. If u can't wait til August try to go with a very experienced track rider, not someone in the green group like me. I still go lots to learn.
The little body position exercise with the stationary bike was the biggest help for me to knee drag. My instructor told me my lean was good and I just had to fully extend my legs. You really got to emphasize the leg out and to (excuse my language) keep your a**hole off the seat. Voila one lap later, touch down.
Mind you out of 6 people, only me and some other guy were knee dragging. But we all had fun.