Back in Engand, in the last century, the majority of sports RC kits had hot-wired white foam wings covered in Obeche veneer. Builder got to stick the LE and TE on, then join the panels with epoxy and GF wrap the joint.
The weight difference between them and built-up is close to trivial, but I never got around to buying cutting gear to try it on an OD. CD gets up to such trickery, I believe
Now, what's going on? Spousal Unit is shouting at the Telly a lot. There's commercials between commercials, but every so often, two teams of aproximately two hundred huge millionaires wearing shoulder pads are trying to move an odd shaped ball around a rectangle of imitation grass using anything bar their feet.