Thank you all, I agree that I tend to over-do it a bit with the muscle. As seen in the Whip Nation video I made for Roy's site, I started cracking with duct tape attached to a pvc pipe, so it required me to muscle it too much. I like to think that if I had started with a good whip, I wouldn't be so inclined to do that, as it wouldn't have been necessary. Regardless, it's something for me to work on. Thank you so much for the comments!
Russell, I will do my best to set a good example and answer as many questions about cracking as possible. Robby's instructional videos are very helpful, I didn't teach myself with them, but every time I watch one I learn something new. I'm very glad you feel I can be a helpful resource in this area. It's where my passion for whips started.