Shim stock which is available in 0.0005 increments is used to get as perfect a fit as possible which is what I would want if I were inclined to try shimming, but I think 3alarmer has the safer approach. That said I would not use the fork, a sudden change in the headset/steerer connection at the wrong time, like a high speed cornering or decline could leave you with serious instability. I suppose if you just lazy ride around the neighborhood you might be fine but you are not out anything, get a good fork.