I use an Iron Cobra Roll & Glide and my tension is very loose. I think I am able to have it that loose because I utilize a lot of rebound and because I predominantly use the slide technique. Although I have gone through periods of using pivot, heal down, and heal toe, I have found Heal up and slide to be the best technique for my style and the most natural for me. I think heal down is well suited for light jazz playing(feathering the bass drum so not much power). I think Heal toe is well suited for using triggers. And pivot is great for extended runs(consecutive 16ths or triplets).
This lesson comes with a plethora of exercises to get your right foot playing complex patterns cleanly and that accuracy will turn to a deadly combo of speed and control.