Maybe we should wait and see if Hall actually does run better on fewer miles if he actually does run notably less miles. Then we need to figure some way of divorcing those results from the miles he's done in the past. The effects don't just go away, as others have mentioned. If those things happen we can say fewer miles worked. But as there is no way of doing the second thing, any success Hall might have on fewer miles will be due to everything he's already done, i.e. his high mileage phase and his lower mileage phase. And 100 mile weeks are really not high miles.