At first it was hard but then it became soft , I can do it
Went in and out of being hard and soft
Was tricky to remain hard throughout. Needed to use a lot of imagination to keep hard for 10 minutes.
10 mins feels like a long time!
It was good, I couldn’t understand the part where you massage but I still feel like there’s a change.
Started masturbating normally after 5 mins 
Got half hard and mostly boring. Tempted a few times to start masturbating normally but managed to stop myself from getting carried away
I found it hard to get hard at first
Got hard and stayed hard, not much sensation at all in that area. Box breathing removed all sensation which was interesting. Should have tried box breathing when I was finishing off. No chance of finishing off with that exercise alone… for now.
Didn’t get hard. Maybe felt some sensations but nothing much. Not a fan but will stick with it and see where it ends up. Maybe just too tired
Was hard for most of the ten minutes but never felt close to cumming
Hard and felt nice all the way through
Didn’t feel much pleasure
A bit unusual at first, but then rather pleasurable. Never got 100% hard, but fluctuating between 60% and 90%. Enjoyable.
No great arousal but some differences in penis noticeable
Felt a bit weird, didn’t feel aroused much, until I started with my imagination
Got hard and stayed hard during it with some imagination, not close to cumming that way though
Had to use my imagination as just by the exercise wouldn’t get hard, but it felt nice.
It was good and enjoyable and I felt in control
Little bit weird and sensastionless; will persist to complete this task regularly