Chastity and orgasm denial discussion

Could I ask for some guidance? I’ve come across quite a bit of information regarding prostate milking, and my goal is to help him leak steadily without getting an erection by stimulating the prostate. A favorite activity of mine involves teasing my partner until he starts leaking pre-cum; we then go upstairs where I attempt to milk his prostate. Using pressure on the gland, I can produce a clear fluid from his penis, but it tends to drip rather than stream continuously. My question is: is this clear liquid (which I refer to as pre-cum) identical to what we’re trying to extract via prostate stimulation? Additionally, sources suggest a window of 10 to 40 minutes for results. Sometimes leakage occurs after just 8-10 minutes; shortly thereafter, around the 10-12 minute mark, he reports feeling discomfort—unpleasant but not painful. Is this merely an issue that improves with time and practice? If we stick with it and gradually extend the duration, will it become effective? I’ve also experienced moments where his muscles tighten and the prostate becomes firm, during which he describes experiencing waves of sensation. Should I push through the discomfort to continue milking him? Does stopping the teasing downstairs help preserve fluid for better results? We are currently attempting this weekly or every other week; is that too frequent? The main practical tip I’ve received involves applying ice to his testicles and penis for 15 minutes prior to starting, though he isn’t particularly enthusiastic about this method. I would appreciate any further advice.