good stuff. No, I hadn't seen that. I like the recommended one inch shorter for the LS connections on the back kite, to, like SparkieRob said, help with wobble/tracking. it will be interesting to see what Andy recommends frame wise. I'm pretty sure I could stack two, or maybe even three in lower winds, with the stock frame. With just three I think the main advantage to improving the frame would be rigidity and turning performance. The stock frame is pretty flexible, and in a stack would probably handle kinda weird.