For the busy dads can you take your bike to practices and ride while JR is at practice?
I talked to a guy the other day who has rode a 200 mile two day ride several times. I asked him what he did to train. He says nothing special, but tried to keep his mileage up. He said when he was working and had limited time you would go to a local path and ride about 20 miles as hard as he could and then a 50 mile ride on the weekends. He said it probably wasn't the best method, but it is what he had time for and he completed the rides.