Astral xx. The construction is only superficially similar to Otop, but very different in detail, to ensure quietness and rigidity. I have flown 4 different ones (including my own) and they all fly really well. The Anhedral tail works too, though i cannot compare it to one without it, i can say this design is unusually neutral, meaning in snaps and spins, rolls, it reacts to inputs very similarly wheather upright, inverted or at any other position. Quite uncanny, and I have flown may other noted designs before choosing this one.

The kit accuracy and light wieght is excellent, no trim needed, no knife edge mixing, CG turns out just right, the YS 160 powered ones tip the scales just under 4.6 kgs.