Just watched the Evolve video, really quite good and sounds exactly like what mine experienced. My car has been on original bearings of course and as I wasn't the first owner of it, I don't know how the previous owners warmed up the car before any heavy accelerations. I still go back to the annoyance at BMW that they only reprogrammed the rev dial lights to reflect actual oil temp on the CSL. The lights on non CSL models show water temp which heats to nominal much quicker, so people automatically see the lights slowly reach 7500rpm and think it's OK to start having a spirited drive or hard accelerating. Mine has been coded to reflect actual oil temp, so matches the oil temp needle. I'm also wondering if MOT testing has an affect on this during the emissions test. You drop your car off and they have it sat there for hours before someone gets round to the MOT, by which point the engine is cold again and there they are revving the engine for the emissions test, an MOT tester doesn't care about your engine needing to warm up to nominal oil temps beforehand, he doesn't have time to do that, so what can we do about that? Once the tabs have worn down, bearing wear is a gradual process, and as Imran says in the video, sending the oil away for testing just once isn't enough, it has to be done regularly to monitor any gain in metal content. Armed with this knowledge now, my local garage carry out my MOTs and are friendly enough to take advice about driving the car normally for a bit before the MOT, or I book it in when I know they will get right into it and drive it myself up to temp before dropping it in going forwards. At least now I know that my new engine will be healthy and I don't need to worry about rod bearings again. A huge expense, sure, but it has also been a learning experience. Ah yes, I did enjoy the last round of moving parts gifs I'l see what I can conjure up from the videos they send!