My reference to the wing I guess comes from using oversize tanks. I don't like to run out of fuel. Graupner makes square tanks. Little more pricey than the Sullivans/Dubros but may help. I have had no structure problems at all. Just need to be a bit creative. Need to watch how low you go or you may take out the slot for the front of the wing to go into.

But this is just what I do and it seems to work. Engines all start up and run just fine.