Our pack is graphite only, but parents/former scouts leave their tubes of graphite with the pack after they cross over. As a result, there's an enormous box of half used graphite tubes at the derby check in and nobody who doesn't want to pay for graphite has to. It seems to me if you want to allow oil, do it, buy one or two bottles out of the pack budget, leave them at check in, and encourage other families to leave their oil behind when their scouts move on.
The thing I'm wrestling with is that there is an arms race brewing in oil that just isn't there with graphite. The best graphites out there are still less than $10 (DD4H is what, $6.95).
Oil, on the other hand, if we believe DD4H's numbers (and I have no reason not to) has different levels of performance as we move from $10 to $20 to $30 to $35 oil, and the tech continues to progress.
Part of me really wants oil to control the mess and to allow for more consistent running of the cars since our race method puts a lot of runs on them.
But part of me fears that this year's oil is obsolete next year, so the oil the pack buys this year or that is left behind by a family who bridges over is just not good enough anymore.
I'm probably over-thinking it, but when I make the pitch to the pack (and the district) I want to believe what I'm selling.