Ah, yeah ideally some silicone tape would probably work best, stuck to the plate and not the paint. I am likely going to also put a paint film on the wings/bonnet edges to protect the paint, mostly I just don't like a gap between the two surfaces. Yeah, I am being a bit anal about things but we all have our quirks
Somehow Paddocks managed to put the arial hole on the wrong wing too, so thinking I will cut one where the am/fm arial goes and sandwich a plate under the wing on the other side and mount the CB/FM 2-way arial on that side.
Thanks for the ideas.