I have two R1150 GS Adentures; a 2003 and 2004.
The 2003 took 15,000 kms to stop using oil, the 2004 never used any oil from day one.
Break it in using the BMW recommended procedure. Don't lug it, don't rev it and don't load it excessively.
Acceleration and high speed loads an engine, therefore, no full throttle acceleration and top speed runs. Vary the RPM. This has always worked for me without any in or out of warranty problems.
"Ride it like you stole it"? Other than "no thanks", no comment on that procedure.