I don't know what motor he's running, but the Optimax break-in is 3500-4500 rpm's for the 1st hour. During the 2nd hour the manual says you can open it up WOT for short periods. Double oil ends after 10 hours. Even if he had to run at 4000 rpm's he still be running at least 40mph and only for a hour.
It would be a pain, but it shouldn't hurt too bad.
