Hi,
I am the one who built the micro-Jet. And I can only guess what you tried to do. In the AFP-Editor you can only change some properties such as the profile, weight or the rudder deflection angles. But although you are allowed to change the wingspan, you cannot really modify the shape of the plane. Especially the micro-Jet is internally very limited to allow only small changes. In most cases you will mess up the model.

I think it would be better if someone builds a Stryker from scratch because although it looks similar, it has a completely different wing and body configuration.

Cheers,
Lego