I get it, you never used FAR before. The pics were used to show you how this mod works in design phase, like the aerodynamic analysis etc. I know you only built your mod for stock users, and I respect that.
Almost all stock planes can fly in FAR if designed reasonably. If your plane can fly, it doesn't mean your plane performs properly. I once built a plane with FAR-compatible parts. When I replaced the cockpit with a non FAR-compatible one, the plane performed in a completely different way in the air. It means whether a plane can fly in FAR doesn't prove it's fully FAR-compatible.
Maybe your planes do perform properly in FAR, but I am not able to judge it, since the plane cannot show me a proper result in the FAR analysis.
Here is an example, the center of lift is a little bit in front of the center of mass. It shows the aircraft is static-unstable. A static-unstable aircraft is very agile and not flyable in this game, yet the plane is flyable and performs a little clumsy. This means the real center-of-lift of this plane in FAR is behind the center-of-mass, and the aircraft is static-stable. The incompatibility of the mod hides the real center-of-lift from me.
Hope this help you understand FAR a little more.