Thanks for your post! I like your auto's... not allowed to own then here unfortunately.Pivot holes on slipjoints do not have/need to be precision reamed.
As a matter of fact, they should be considerably oversized.
I guess making the holes to big will make the knive feel like its moving and thats most likely not what you mean. Of course it still has to feel sollid. Slip joint will not have lock-rock. Is that why precision reaming is not nessesary and you can get away with more room? Or is there an other reason?