Ok, so went ahead and gave it a shot. I can knock out 10-12 dips in a row on a straight dip bar, but having to balance yourself, and turn the rings outward makes the level of difficulty go way up. So I did two, and I wouldn’t consider the second a full rep. I think I could hit 3 atm starting fresh out. I would like to increase to at least 5 before I start putting this in my workout altogether.
Thought I should add that most people do these dips just with the rings close to side and knock out reps. Which I could probably do easily 5 or more like that. I am following GMB recommendations of doing a rings turn out after each repetition. That is what is really difficult for me.