Yeah, they are really great planes. I am trying to get mine back from its second owner, but looks like I'll have to take out some of the center of the wing to repair it. I used mine for all kind of neat learning experiences. I had virtually no dihedral in it, enlarged the rudder, wing bolts, glassed center section of the wing for strength. The funnest thing was building a wing mounted release mechanism to tote hand launch zagi wings up. Pop channel 5 on the radio and release the lil rc zagi.

I think my tank/ply setup was a little different than yours is in your pic. You might want to even try to move the tank back a little and see if it clears some. What size tank is it?

Heres a pic of my avistar, with the zagi affixed to it.