Again with the motorbike refrencing... but they often use sandbags to help limit the movement on the back as they hit the metal, and allow the metal to stretch with the blow and make a smaller, more controlled bends/curves.
Not necessarily saying buy a specialist sandbag, but again thinking about the principle - if you can put something solid with some give behind it or make your own temporary mini sandbag - then it should help reduce deformation.
So I played with the pair I have on another bike and they are actually way more malleable than I initially thought. I'm planning to jut pinch the sides with pliers and bend slightly. That doesn't seem to mess with the overall curve. Awaiting delivery of a 50mm pair.
That sounds like it might be the way to go.
Again with the motorbike refrencing... but they often use sandbags to help limit the movement on the back as they hit the metal, and allow the metal to stretch with the blow and make a smaller, more controlled bends/curves.
Not necessarily saying buy a specialist sandbag, but again thinking about the principle - if you can put something solid with some give behind it or make your own temporary mini sandbag - then it should help reduce deformation.
I think.