Mine have always been pretty good, I've never had problems reaching the floor and if I'm not being strict on back position I can relatively comfortably get hands flat on the floor. I guess for me it was rowing as in each stroke there is a small active hammy stretch.
If your hamstrings are causing problems have a look at Inch-worms, put them in a warm up or just bung them in anywhere. They are also good for shoulders and ankles and everywhere else for that matter
![Smile :) :)](/styles/default/xenforo/vbSmilies/Normal/smile.gif)
.
Basically walk out as far as you can with your hands, little steps and try to keep your legs straight, then take tiny ankle steps to bring your feet back to your hands.
They are really good, I can definitely recommend them
![Smile :) :)](/styles/default/xenforo/vbSmilies/Normal/smile.gif)
.