While your testing the market, I'd recommend trying on an ION wettie. Main reason is they aren't built for surfing, but for standing sports such as Windsurfing, Kiteboarding, Wakeboarding and SUP. The beauty of the ION wetsuits is the acoommodate for extra muscle expansion in your forearms & biceps (due to the fact that we are holding onto the paddle and not just patting water with our hands) and for the fact that our shoulders spend more time on a different angle to specific surf style suits. With this design, you will find you tire less after longer paddles. I believe RPS and possibly SHQ hold stock. Worth a look into.
www.ion-products.com/JB
P.s. Yes i ride for ION.