My first SS check hit the bank today and I'm treating myself to a green laminate Uragan 2 from Tony. I prefer the looks of the 600 v the 700 but worry about giving up too much speed with the shorter barrel. Is it realistic to obtain mid to upper 900's with a 25-28g slug out of the 600 barrel? Anybody buy the 600 or 700 and wish they had gone the other route and why?