O yeah, hip flexors... Thanks! Those are so easily forgotten. Thanks for the article link Allen. I know that floor touching is not the be all end all, but you do need a certain amount of muscle elasticity to get that done don't you agree? It's just that I am not going to be working on a completely seized up set of hamstrings. I'm still working on this, and it will be a work in progress. He may be up for the sled drag. He's a big boy who lives out of town. Maybe he can use the sled instead of a tractor to move his Diesels from one truck to the other.