I’m wondering what the hell your agenda is.
“Resign to a flaccid penis”, like what sort of statement is that?
A cockring and a simple erection are different, in jelqing you apply pressure to your penis that isn’t caused by either sex nor masturbation.
My only agenda is hoping to get better and helping others.
What is your agenda though?
Someone disagrees with you and suddenly you become paranoid of peoples intentions?
If he wants to try it, then by all means, do so, but if his problems are caused by jelqing, obviously a cockring isn’t the best way to go about checking the blood flow, now is it?
A medical check at the hospital that can measure bloodflow is more appropriate and safe in his scenario, that’s all.