I think that Ted's program is generally good, though I would say it is somewhat conservative with the mileage increases. When increasing your miles when you are in relatively low mileage arena (20-40 mpw), I think it's ok to just do the maximum 10% increase in miles each week, which would bring you up from 20 mpw to 43 mpw by week 8. This is of course subject to how you are feeling. I would go with Ted's program but add more miles if you are itching for more. Once you get above 40 then there can be some benefit to increasing 10% for a couple weeks, then plateauing for a week, then increasing for two more weeks, or something like that. My 2 cents