I'm hot rodding a double Hocked WWII 4 1/2 and getting the throat closed up tight is a real bugger since there is no adjustment screw. It's pretty tight now but i think i want it a bit closer which means more of the slide/tap/tap/tighten the screws etc. Problem is with the chip breaker set real close to the cutting edge the chip breaker actually closes the throat up and not the cutting edge so i'm considering filing the opening on an angle to allow the chips to pass but i hate to do that to a near mint plane.
So the big question is, how tight do you get the throat on your best smoother?
Ever file the mouth on an angle?
Am i going overboard?
TIA!
Brian