Yeah, I drilled them to 7/64, or whatever the Triumphant artice said (can't remember the exact measure anymore). Anyway, it only took off a very small amount on metal, so its possible that the newer bikes come from the factory with a bigger hole. I didn't notice too much difference either positive or negative. So I don't think it hurts to drill out the hole on the newer bikes, but you may not get as much of an improvement as on the earlier bikes.
