Awesome set and.... you look a LOT taller than 6'1" in that video. I was thinking a bit taller than that till you said you were 6'1".
Chris is right, you could easily handle 300 on your frame. Nice gains by the way... 180-260! I'm slowly working my way to 200+ but I'm only 5'9" though so that ought to be good enough for me I think, I don't know? I'm sittin at 186 or so and started at 165 in April of this year.