If youre of the many dont have access to a GHR bench, i got this awesome excercise that you prolly already know about. best method is with a swiss ball, preferably the larger green ones. you can also use the side of your bed if its low enough to extend properly, or bench, couch, etc. lay on your back, with heels resting on the top of the ball. arms either up in the air or resting on your sides. i prefer up in the air, you wont use them to help this way. now, pull, or, roll the ball toward your butt with your feet, while popping up in the air like your humping it. the ball will roll onto your entire foot, and should stop when it hits your body. thats how you judge proper depth. feet will be on the top of the ball as soon as it hits your body. tre key is in the pop as you extend up. while you do this, tighten your butt muscles, arch your lower back, and flex your hams. you should feel it in all these areas. since there isnt much resistance involved, the trick is the speed and the flexing of the muscles. it definately works! consider it the dynamic GHR. hehe. give it a shot!