Rosco , i have the hobie drifta 10", great board, kids use it and I take it camping and ride on shore breaks, it is well constructed. I originally was looking at the Redpaddle but the guy just didnt really want to sell a board so started looking at the hobie. I went for the hobie as the store was ( and i mean was, went bust last week) close to me and figued if i had a prob can take it back to them, bit harder on the web. hobie also have been around for years and have been making inflatable kayaks for ages. They are made from the same stuff as inflatable boats so are pretty strong.
At 14psi i can stand on mine onto of 2 esky's and it bends about 1cm.
takes about 5-6 min to pump mine up, once it gets to about 8-9psi its 1-2 pumps per psi, by 12psi it is hard work to get the last 2psi. but you are warmed up by the time its all pumped up.
www.seabreeze.com.au/forums/Stand-Up-Paddle/Review/Hobie-ISUP-Drifta-10/