Try putting a thin layer of, Magnesium Carbonate on your penis before applying the THERABAND, this will reduce the friction in the skin.
I bundle my penis as much as possible, I do not count. The gains are what is important. Somewhere there is a video where I show how much I can bundle at the max. But when I was stretching I could not bundled at the max at every set. Only two or one set every 3 days I did bundle at the max, if I did it every session my penis would have started to bleed.
In the beginning when I started with these maximum bundled stretches, I needed to detach every 5 minutes to not get to much bad fluid retention.
But bundles are not the only parameter to increase the intensity.
How to increase the intensity in BTC-BS with LM3.