If I rename an XRG skin to XRT or XRR will it look OK, even if its slightly dis-proportioned? They just have slightly wider fenders & wing. Curious. Have not tried it yet. Thanks!

XRG and XRT are quite close (the wing being a one of the biggest changes). XRR, as you say is quite different due to wider fenders. Best would be to rename them and load them up on the CMX viewer to see how good (or bad) they look, and if required, to modify accordingly.

If you are pretty in to skinning, you might already realize that skins are stretched over certain areas in different percentages. JazzOn made a thread about stretching of skins, which might be useful when skinning (in case you were not aware of it already).

Skin lfs para drift XRG