I don't think it would be a showstopper, but it may accelerate wear in the long run. Provided the oil pressure is enough to force oil through the helical spiral despite the rotation of the cam sort of pushing oil in the wrong direction I think it would actually work fine, just something to keep an eye on. I think trying to mess around in there with a dremel might lead to worse problems. The people who normally make this switch convert to needle bearings so it isn't an issue for them but that is a costly and unnecessary change for a street bike.
Look forward to any updates mate.