Thanks for everyones input on Hyperflex wetsuits. Today was the first day I wore my AMP 5/4/3. It kicks ass!!! I was actually HOT, paddling out the first couple of times. No flushing at all, the suit is super stretchy and pretty comfortable. I have a 3/2 AMP thats an 08 model and it seems Hyperflex has made leaps and bounds in wetsuit material and construction. I was out for a couple of hours and didn't feel the cold until I got out to leave, and it was minimal.
I'm happy I decided to get the Hyperflex and not drop 4 bills on a suit.
So thanks again for the input and I'll leave more info at the end of the winter.