You obviously are very strong, so good job on that front. However, I did not like the form. You went beyond upright at the top, which is asking for an injury. Also, even though you managed to do each rep, I would say that the last few reps were laboured (not a spelling mistake - I am Canadian :)), so I would suggest dropping the weight to make sure each rep is done without contorting and hitching. It's hard to see from the front, but I suspect your back may have rounded. I would also suggest a side video to make sure. Also, do you always train with straps? I did for a while, and although I loved how my numbers went up, they didn't really go up because it was a different lift.
You may have a hard time getting your grip strength to catch up to the rest unless you drop the straps. I'm also not a fan of touch and go deadlifts, because they aren't lifted from a deadweight position. My own personal rule is to remove both hands from the bar before initiating each rep, but that's just me (I know many who disagree). Anyways, I don't mean to sound so negative - the strength you displayed at that weight and # of reps is impressive regardless of how it was lifted.