Natural movement provides a powerful stimulus to redefine habitual patterns of pain in the body.
Hormonal balance and maintaining clear cognition are the most important aspects of experimenting with IF.
Until you fix the root cause for your tight hamstrings, you are chasing a never-ending problem.
I've been a powerlifter for 15 years, but recently I learned a lesson that I need to respect my body in order to grow it. Don't make the mistake I did - lift heavy, but listen to your body!