I haven't run into that scenario YET. It would be interesting to know as well.
What I have now is a dump valve seal that can't be designed with a floating-type seal. It needs to be stretched into it's gland so it won't blow out. The gland itself has been designed, but I'm sizing the ID of the bolt and don't know how much squeeze I should run. Since I'm not using extrusion to make the seal, I need to put squeeze on there which is horrible for friction and FSDO in this particular case.