It's a joke compared to what I did today. I was right, I totally had more in the tank after 455. Today I hit up the crossfit gym and made good use of not having to set down the weight after my lifts, as well as the chalk they had available.
455 flew up like it had rockets attached. 475 was a little slower, but came up with absoltuely no rounding of my back, telling me I had more in me. 500, well it moved a little slower, and I had to let out a good yell to winch it up my legs, but I got it. I even felt the weight bouncing in my hands at the top. I've never lifted enough to bend a bar before.
So just like that I've added 45lb to my total. Here's where I stand, because I LOVE typing this all out when I get to add to the numbers!
Deadlift- 500 (2.2xbodyweight)