My Two Cents. That boat is too small for you. The mamba is a classic design that is battle proven. It's actually the first boat that dagger has ever made a radically redesigned second gen version of. But, the 8.0 is still too small for you.
A boat that is too small, will get tripped up on eddies lines, will be harder to turn than the larger size, and you may even find it next to impossible to boof. Further, paddling a boat without shoes on is unacceptable, unless you are from the southeast.
My advice, flip it and buy a bigger boat.