Very Strong Dick

So I worked up to 15lbs hanging with the LG aND never felt fatigue despite hanging 3 hours a day. I tried increasing weight and started to get blisters. Even with the slightest increase in weight or time. My glans would also begin to hurt too much with that weight even tho my shaft felt no fatigue. I have since taken a break from hanging and began manually stretching again in order to increase pulling force and e easier on my glans. Regardless of how hard or how long I pull I feel no fatigue I stretch in the morning and evenings after a hot shower for 20-30mins. I’m limited by grip as I’m pulling really hard. All PIs are fine ut I just feel I cannot create enough stress on my penis. What would you veterans suggest I do in this situation?

I also feel like my ligs and tissues are very strong. I used to feel fatigue while stretching and the disconfort went away 1 min after I stretch, is liek it got used to it. Now I am no feeling fatigue at all. After talking a few days off I feel like my dick feel to be stretched again and it is nice. Also now I have incorporated stretching to the sides and it is a new stretch that gives me that stretching sensation again but it also gets used to it. I see you have gaine amost an inch, did you feel faitgue to gain it? How did you gain?