Last year, I tried jelqing during my
bathmate session and ended up having a swollen vein. Since that time, I vowed never to jelq again. Be careful with jelqing, you seems to have hurt yourself in the past before.
I don't really know much about jelqing. I will suggest you wait for other forum members to comment on this. It's Sunday and we hardly get comments on weekend.
You jelqed for 3 hours daily for 7 months? What type of gains did you make?