u/Ambitious_Laugh_6424

Hi so i started pumping just a few months ago i used to be doing intense extending with clamping , started pumping at 10 inhg and now just a few months in i already can pump 21 inhg for 10 -15min is that too dangerous ? I already have length results my penis used to be around 15,5cm now i m above 16cm erect and after pumping i m almost at 16,5 , side effect it made me more sensitive and i ejaculate prematurely any advice from anyone ? Thanks.