I've currently on week 9 of RC PE2 and so far have been performing the exercise using a couple of beach towels hanging from a pull-up bar. (I know!) It's pretty hard on the grip but I think it works ok for me.
However, (assuming I don't injure myself if one of the towels rips), I'll be moving to PE3 soon and need to get something else sorted as the towels aren't going to be long enough. Do you think I should buy rings or a length of rope to hang from the bar? I think I'd prefer rope as it'll continue to work my grip but do you think rings would be better going forward?
Or I could buy some longer towels of course!