I use rack pulls to strengthen that phase of my deadlift. You should be able to pull more form the pins. (Depending on how low/high they are placed.) Obviously the higher the pins, the more you can lift.
I believe you aren’t supposed to go more than 10% over your deadlift 1RM. I suck however and have done a 565 Rack pull with a 435 max deadlift. (I am a curious guy when it comes to 1RM.)
I try to put myself in position just like a squat or deadlift. Straight back and all. Keep it very tight and also hold it for a while for grip work. Like deads, I don’t usually pull for many reps. I just go heavy. Some folks will go lighter and do a shrug too. Good luck man. This is just my opinion and experience. [/quote]
Where did you get the 10% rule? Just curious.
I don’t do them that often but when I do it generally leads to a surge in strength in my actual DL despite my DL sticking point being 3" off the ground (and my rackpulls being from the knee).
I think there is a definite benefit in the supramaximal loading, though it seems to be too taxing to perform very often. They’re definitely fun though.