Just an observation from the cheap seats:
The OP having to post this question speaks volumes. I wonder if anyone at HD HQ monitors the various HD forums, including this one? Something's wrong when customers buy a company's top of the line product, then question whether to start replacing parts. I'm not Harley or CVO bashing, just pointing out something that's concerning...something that should be especially concerning to a CEO.
Last year I bought a new Ford F-150 King Ranch. I couldn't imagine buying a top of the line pickup, then immediately worrying about parts failing. I don't think Ford mgmt would stand for reliability like that.
BTW, 20k on my CVO with original lifters, etc. However, started using oil about 10k...1 qt. every 1,000 miles. Not acceptable on a $30k+ bike after so few miles. Others have posted similar issues about 110 oil consumption.
I had a friend in FL, and a friend in SC that the 6.0L PowerStroke Diesels in their brand new 2004 F-250, 350 King Ranches blew up (melted, 1 caught fire) on their first day with the trucks, window stickers still in the windows, later a large class action law suit for Ford on the 6.0s to the tune of $500M... My '04 F-250 6.0L Harley Truck has never let me down for >150k mi. so far, although I did perform preventative measures along the way... ( just like changing out the lifters in a 110

)
There's not a Manufacturer out there that can throw stones...