Sweet, thanks for the tips. Re: #3 - my sticking point has traditionally been about 2 inches off the ground. From ground to 2", feels good, then boom, and it just kills all my speed. Any thoughts on what to do in this spot? Deficits, to work on speed through that spot?
Work on absolute and accelerating strength. Your starting strength and explosiveness gets the weight off the floor, but when it comes to accelerating and creating even more force, you have trouble. Or atleast that's my theory. So maybe speed work with a bit heavier weights, like 70-80% of your 1RM would be good.
I would see two good options on specifically addressing the issue:
1) Have a pause after you get the weight off the floor. Like a 2-4 second pause, just hold the weight, then blast up. You need to use way less weight on this one, but it could be beneficial to add as supplemental work. Isometric work has been proven to improve range-specific strength.
2) Pull from 1-2" block or something similar. You could try to add more range specific strength by starting the deadlift from the sticking point or just below it. At least the mental barrier would be crushed.