Guys, I have been taking off on top of my box for a while now. Launching from the ground can be scary because of non-uniform lift. The quad will drift laterally while trying to pull itself off the ground. I've had a couple ground launches where I think it's going to tip via launching, so I starting launching from the box. Seems to help, however, I still get a non-uniform launch sometimes, and it's a little scary. Landing is even worse, and since my tip-over landing, I no longer land on the ground - we always catch. Either I do this myself, or my co-pilot will do it. We've caught now for 25 flights and it works great. How do most people launch and recover though? Thanks!