When I drilled off the main gear, I didn't notice that the outer gear retention block moved on the right gear leg. The result was a hole that was close to the radius of both the lower longeron and the weldment. I toiled with how to make it work, but with the thought that it would constantly play on my mind, and two daughters keen to fly in the future, it was a no-brainer. the longeron and weldment had to be changed. I was able to get the longeron out in a day. There are a LOT of rivets holding that in place.