I guess when there is a design change, e.g. swept wings . . I imagine compromises are made.

It probably benefits the designer more than anyone else

I remember someone telling me that a WELL KNOWN European champion and designer of many great models once said, "my planes are designed to more easily fly the manoeuvres I am weaker at flying". I guess this means that if these same manoeuvres were your strength, and you were weaker at others . . you probably wouldn't like the plane?

Maybe a fairytale . . anyway, interesting comment.

Cheers, JB