Hello and thank you for maintaining this mod!
Unfortunately there appears to be (on my install) a problem with some sort of mesh when resizing control surface root/tip width. As you can see from the picture, a two-dimensional surface (only visible from certain angles) remains where the position of the trailing edge used to be before resizing it. It also seems to be causing a good amount of drag in FAR.
I'm running KSP 1.3.1, FAR 15.9.1, (your) B9-Pwings-Fork-Backport 0.1.0 along with a bunch of other mods that may or may not cause this.
Can you reproduce this?
