Originally Posted by
LesterOfPuppets
filing the headtube won't help, it's the steerer that matters. I'd sooner sand down a stem. You don't really need to take it to a shop, just get some sandpaper and go to work.
Yeah that's what I'm going to do. My buddy found a 80mm extension stem at the local swap meet for $5. Sandpaper it is. Looks like it's a forged Aluminum stem too so I can actually polish it without much work