Spend a little more and get the Mojo .60 built. Swany's planes are so tough, it greatly decreases the pucker factor, allowing you to try stuff you probably shouldn't, and get away with it. The Kat .70 is a real nice plane, too, from all reports. Truthfully, I haven't flown either. I have a Mojo .40 and a Kat .40. The Kat flies nice, but it ain't no Mojo. Had one minor dork with the Kat, which resulted in fairly major repairs. I've dorked the Mojo about a hundred times, learning to torque roll 1 foot off the ground, where I learn all new maneuvers. The cumulative effect of all these dorks is about the same as the one dork with the Kat. Do you want to do major repairs after 1 dork or 100?