So I got my new 420 S/M in the mail about a week ago and I wanted to update everyone on my thoughts so far. First off I am 175 lbs right now and will drop to 170 lbs mid season. I have a 31 inch inseam and size 11 feet.

The fit of this boat is superb. With the seat in the middle position I have just enough room to fit in the boat. With the seat back (approximately 1-1.5") This boat is comfortable enough for long river trips and can fit a substantially longer inseam and bigger feet. What I love is my ability to put my feet in this boat without pain, just ample room for the dogs.
:P Outfitting is great. Over the years Pyranha has really refined the syncro outfitting and this year I think they hit it. Last year I had an issue with the webbing of the backband digging into my sides, but the new setup doesnt even come close to getting me. This boat also comes in under 30 lbs. The hull support is in my opinion one of the best on the market, very functional and very lite. Finally just no Bulls#@& outfitting, this stuff is designed to last. With very few moving parts I expect to have no problems with breakage this year.

Flatwater paddling is not what I bought this boat for but since I have not had an opportunity to get on moving water, this is what you get. This boat is as fun in the flats as my old kingpin icon, which until now I regarded as the best flatwater boat around. The 420 is super stable on end and has the best feeling stern I have ever put on. The stern is easy to clean in the flats but has the required volume to keep your back out of the water. Kind of reminds me of a cross between the wavesport zg stern (to much volume but great feel) and the pyranha s6 stern (fun, but small). This boat also flatwater loops and throws endless cartwheel.
I am very excited to get this baby on moving water to provide greater feedback, but until then give on a try at your local pool session.