This shows how we are, as you said "Different". There's no way I would attack a sticking point this way. Truthfully, it's everything I would never do.
Your PR is about 100 lbs over mine and God I hope your not in the 220's. lol So I say this with all due respect. You don't get to those numbers by not knowing your body. For me, the only thing singles made bigger was my ego, even triples were off limits until 3 weeks out.
When I first read your post I was wondering how this could work. I have been in this for a long time and an open mind is a must. The man that knows everything knows nothing. So I thought about it; any chance this has more to do with your CNS and less to do with the actual strength?
Snake, I found that the sumo deadlift which I did is very highly technical. So I started really bumping my total up when I quit doing reps and started doing only singles. I also found my weak spot was the last 3/4 of the lift, locking out the weight. So the arched-back GM's done in the same ROM seemed to really help. Does this work for everyone? Maybe not. In 2001, I was ranked #1 in PLUSA in the 275's and #2 in the 308's. I pulled the 800 in the 308's later in believe in 2002. I in 2001 I pulled 765 in the 308's in Pennsylvania and a week later I dropped to 275 and pulled 775 in Houston like it was nothing on my 2nd attempt. I did not even plan on lifting at this meet.
Yes it has a whole lot to do with the CNS. The more you can get psyched up to fire off all your muscle fibers at the beginning of the deadlift, the more explosive the movement and the more force you generate. This combined with the needed strength puts up white lights. I also started only competing at meets that used the Ricky Crain's Okie deadlift bar (27mm). I even brought mine to meets that didn't have them. It is a slightly smaller diameter bar, giving it a whole lot more spring that a regular bar.
I got a lot of my training ideas from old training partners, John Inzer, Jim Cash, and Anthony Clark. Anthony was never a good deadlifter but his training ideas were very sound. John Inzer was one of the best deadlifters of all time and was very good at training the mind. Jim Cash was just a genetic freak. So it is a mix match with some of WSB stuff thrown in.