Have seen the P51 and the Me109, would love to see a Jap Zero offered in the swappable series. Seems about the right plane to fit in with that group. Also trying to work out a way to build a round(ish) fuselage for the swappable series. Looking back to my CL roots from when a youth. Seems like it would be easy(ish) to adapt a similar technique used on the old balsa kits. Especially with the lazer teck at your disposal. Wish I could have made to your open house.