I have a question for all the experts out there. I am currently doing partial deadlifts (start about 8" from the floor). I used to deadlift around 500 off the floor, but have tweeked out my back 3 times doing this. Usually with lower weights after I was tired and used improper form. Everytime I do deads from the floor my back gets this weird sensation that it is about to pull. Therefore I have started Partials and have no problems. I have worked my way up to 545 on partials.
Question is should I go back to doing deads off the floor, or is the risk not worth the added benifits. What is really being worked in those first 8". BTW I have no desire in competing only producing results. I have been training consistanly for over 12 years.