I've been very busy helping dads in our pack and a few others proving drilled blanks, weighting tips, etc. Now a few dads in a pack that allows oil want to give it shot. My question is - is it risky running oil on a track where a majority of the racers will be using graphite? Can it get into bores and gunk things up. Our pack is graphite only so I never gave it much thought. Any help appreciated.