So, I am 6.5, 240lbs and work out religiously.

I had a 577 at 13 lbs and it beat the snot out of me.

I had a 500 at 11lbs and I shot it like crap.

I have a 450-400 3” and it is just right at a little less then 10 lbs.

I love the idea of the big boys but candidly I just shoot them like crap. I would work hard and find a 500 and / or a 577 to test drive before you put the money down.