Yep the first lot of oil is like water.
The engines are givin a fair beasting at the factory on the rolling road before hitting the dealers showrooms. So I wouldn't worry too much about premature wear so long as it was warm when you gave it the berry's.
I've always thought the gradual running in was to get everything bedded in right. ie all the running gear.
I was told the same as you were 60-70mph for the first 500 miles then have fun. The sprint on the other hand had a long drawn out running in schedual. 3k rpm for the first 100 miles 4k for the next 400 then rising in 1K steps up to the max rpm till it hit 1000 miles.