Loss of partial erection during jelq

Any tips on keeping that 70% partial erection during jelqing.After about 1 miniute it starts to go away.Any tips on keeping it for the full 10 minutes?If I try to regain by thinking of things it usually just goes all the way100%.any help greatly appreaciated.

Thanks 5x5

Watch porn, and a documentary on what happens when paint dries at the same time.

I had the same experience like 5x5, but it totally changed after I do dry, and even better when I do 5secs jelq. I can feel huge amount of blood fills my unit (especially the upper shaft and head), and the sensantion keeps my unit even harder that I have to take rest after 50 jelq as it is too erect.

You may also try kegel every 10 strokes to fill more blood maintaining the erection.