Sorry but the UCD is still sidelined. I keep buying new ARFs before I finish existing projects. Just got a FuntanaS 90, for example.

Anyhow, I've got the hinge lines sealed and the servos mounted, so all there is left to do is RX + batt + switch. I bought some APC Fun Fly props - 15x4W and 14x4W, IIRC. You really need a large diameter low pitch wide prop to do 3D well. 12x6 is too small for a .75 2stroke. 13x6 is what I use for regular sport flying. Still, it's not a good choice if you want high thrust at slow speeds. I don't know if the Tower .75 will swing the 15x4W, but for sure the 14x4W should be fine.