@ToeTips i have a forum post that you might find useful, but you can just change the input for the preexisting control surface to the code and follow setup from there, it works will all moving or normal surfaces:
Heres a link

@Novaxomix Okay thanks for the advice

@ToeTips often the planes ted to work better for higher speeds, once you know XML it will bea way easier to diagnlose the problem

@Novaxomix Its not low physics for me, it is still unstable

Also making it less maneuverable isn't an option for now

@32 Click Here

@32 i'll post it unlisted

@Bryan5 if you tag me on it I might be able to fix it. I think its a wing problem but i'd have to look at the plane to be sure

Sometimes a plane on low physics wil do a weird glitch like that, the only way to make it better is to either fly faster, or make the plane less maneuverable, my v-823-90 had a similar issue

@ToeTips Okay

https://www.simpleplanes.com/a/r7Pg7Q/Black-Falcon-A-5th-generation

Link to it

@Bryan5 No not that one

@ToeTips is that the plane that you posted ? If yes, i've seen it

@Bryan5 Would you want to see the plane I'm talking about?

@Bryan5 Yeah, I would add some kind off flybywire but I'm still learning funkytrees

I have the same problem with my W.I.P F6F, i guess some people will be able to help both of us