i finally figured out the right thing to use. i've got a rope belt, so i can set it to whatever size i want. it works perfect. finally, something good comes from my cholo days haha
this stretch feels really nice. i did a stretching session with these and the mandingo stretch and i had to stop because i was getting too sore. i'm feeling good about the gains to come. hopefully 7.5x5.5 isn't too far away