I share your concerns. The lower frame does appear weak, especially the front landing gear leg mount. This is an issue on the Kraken 700 too. In the case of the Kraken, the lower side frames are strong enough (and are cross-braced at the rear) but their attachment to the main frame 'spine' is very weak. The panels just brake away in anything like a hard landing.It does look really cool. But the way they designed the lower frames looks a little weak to me. With no support between the landing gear and the long frame sides, it just looks like it won`t take much of a crash.