RE: VAPOR weight
If it does not flex under loads -it should be great
I found that holding shape on the aerobatic stuf really made a difference.
some stuff was flexible and was always hunting Pretty modle also - my little foamie is a SWAG to se if power and or weight needs adjusting
So detail work is minimal
I once did scale stuff - this design was 2.nd in Sportsman Scale in 1984 at Nats - The one I entered was detailed .