i gotta ask....did you feel nervous at all with all that weight on your back? I think I would go into hyperventilation just standing there with all that on my back plotting the decent!
you know, when you stare at 475 pounds on the ground getting ready for a deadlift, yeah, you may be a bit aprehensive about it, but there is no fear...you can't get it up, you drop it, no harm no foul. you have 475 hanging out up there on your shoulders, and that's a whole other story. I know you probably did this in a power rack so you could just drop the bar on the pins, but it's still gotta be nuts right?
I will be happy to do a squat with 4 plates sometime in my life, and you're already past that. Where were all these numbers when you were doing your "other" routines? You seem to have just gone up and up everyweek since you decided to change your "focus" to powerlifting. Is that all it took??