Have to agree - no ragging the nuts off it whilst cold, but after about 10 mins of driving once the oil temp and pressure are up to where they should be, then knock seven shades of ***** out of the rev counter and gear lever.
John, as a biker, I'm sure you're familiar with the
bike oriented site that promotes the hard run-in procedure rather than the softly softly approach.
The sooner you slough off those peaks on the rings and wall, the sooner your seal will be created, reducing the blow-by when cold, which is when most of the acid compounds are formed, and reducing the life of the oil.