If the model won't stay upright a thin layer of super glue over both magnets will add friction.

Truly awesome thanks for the motivation for me to buy another b-wing and chop it up. Great kob again

If the model won't stay upright a thin layer of super glue over both magnets will add friction.

I usually just file the surface a little, but his would also be good..

On my gimbal mounted WWI aircraft I filed the bearing I was using to create friction and better grip..