Widen Receiver forks?

[Quentin]

Of three receivers I have one fits much tighter on the frame than the others. I'd like to bend it very slightly, probably less than 1/16th" to reduce friction.

Has anyone done something like this? I was thinking of using a wooden wedge and tapping it between the forks. Maybe someone has a better idea? Of course my worry is getting heavy handed and breaking the receiver.

Thanks for any suggestions!

Bob