I tried to do 4/6 but didn't like it! (I now have just ended up with 3, 4, 5, 6!). In any case if I were to do 2 wings, I would drop the smallest one, and choose something like Wasp v3 or FOne Strike that have 0.6m or 0.7m spacing so the difference isn't so extreme. E.g. you could have a 4m + 5.5m o...