I have the amp and love it. Great suit now in it's 2nd season of hard use (like every swell for 2 winters 3 hours a pop hard use). I did develope a couple of tiny seperations in the front armpit area, nothing major though and easily fixed. Was out today and was dry as a bone. Agree about the gloves and boots = crap. just got some brand new f-bomb 7mm booties off of ebay and I can't believe what a difference that made. No more white numb toes for 2 days after a surf for me!
I have the 5/4/3 AMP (New this winter) been out with it three times so far and it rocks. Got shacked good a couple of times today and no flushing at all, just a little water around the ears. The cords they use could be heavier.
5 mil dry-lock gloves kick a$$, 7 mil hotline boots - super grippy and warm (Cosmic Bull in Long Branch will hook you up)
Entry into the AMP isn't too bad, I'm 5'9" 168 lbs (was 177 when I got the suit) and it fits good, have some room for poly underneath. I would go to a local shop to get it so you can try it on.
I have an old AMP 6/5/4...It's toasty! I love it. It's holding up well. sure about the new one. My old one looks more like the new Flow does. I emailed Hyperflex to see if the FLOW is a rebranded older model AMP. They said no, but I think it is.
I bought their boots and used them twice. Not good.
pkovo - Pretty sure you are right. The current flow is the same as the older amp Model (like 3 years ago older). I had an amp back then and thought it was great. When I wanted a new one I saw that the price had gone up but bought it anyway. Totally different suit and way better than the old amp/flow model. The flow is a good suit just doesn't have all the extras that the amp has. The skin on the current amp really sheds water which keeps you much dryer.