Using that hamstring stretcher thing seems to have unlocked my ability to stretch my legs in bed my just max-extending them out, which was also a help with the lower back tightness.
Yeah my hamstring-stretchability was kind of a point of pride, now that I think of it. Lord knows the V Sit-and-Reach was my only good event on the Presidential Fitness Test, and back at the dojo if you took it to the floor you’d probably get mount on me, but I’d wear you out while you tried to get a submission and I literally directed most of the resistance force back to the ground, and I’d use one leg twined around trapping the opponent’s and bring the other one up as a third arm to break chokes then eventually I’d start trying to hook my knee around your neck