I stopped doing it after I got oral sti the third time. It felt like I was a slow learner but dropping it has not affected income.
I have found that clients like it when I watch them cum either from HJ or they masturbate in front of me - and I tell them how good it looks and how there is loads of it and it is turning me on - even if it is a tiny dribble, I hate the smell and it does not turn me on at all.