How many can you do in one go?
I have 15 under my belt, quietly working up to 50.

20 tops. I need to take a break after 20 and do something else before my arms feel up to doing another 20.

50? Ha, good luck.

I can do about 14. Most ppl I know can't do more than 10.

And it's very rare I see someone doing more than 30.

the most i see is up to 20 or less...and yea its rare for me to see any1 do 30+ and it also depend on the position of ur hand holdind the bar(like back hand face you or the front)