3On a second step, I practiced some maneuvers like: fly forward and backward, turns, pull to catch, 3D over the head, forward and reverse up and over, passing ground and so forth. Because it was so, so, so funny flying in that way, I added my third Revolution Indoor, practicing the same exercises of flight. After 3 hours flying in that way, I decided to add the last one, the fourth…! (http://www.elalmadelpiloto.com.ar/indoor/index.html Part II) I have to confess that I had some problems trying to do 3D launch with four kites. So, in order to avoid breaking frames, I lay the kites on the wall and take off in that way. Maybe you are interested in some tips like: take off, length lines, tuning, maneuvers, feelings and so on.