"modern day OEM engine"
(stock)
Differences on minor modifications are questionable at best without a dyno chart. I agree with the video above that "wemay" posted but it is not videos like that that have formed my opinion.
As far as what you experience with your UOAs are unique to your environment and engine, its just fact, just like an oil filter, the larger sand and dust particles that you let circulate around your engine, the more wear. Again, this is for the average consumer who wishes to get long life out of his/her engine and do what is best for it, much like most of BITOG forum.