ORIGINAL: Gizmo-RCU
It would be nice if they would update the top wing just as Sig should have made ailerons available on the Senior Kadet kit to keep up with the times........Both the P-90 and Kadet are classics that could be improved with just minor changes.
Agreed...
An addendum, to the instructions and drawings wouldn't be a big deal for the "expert builders" who choose to add ailerons to the upper wing.
But retooling to change the cuts of parts, that's a bit more expensive.
Easier (and cheaper) to add a picture or two to an instruction addendum, and go from there.