you can go broke changing/improving every little bit to decrease your probability of failures. Not to mention the added potential for problems caused by mechanics error.
It makes sense in F1 racing...but on my car?
Recall that Jake says there are 21-22 failure modes. Does it make economic sense for every M96 owner to go try and prevent them all?
Where do you start and stop? How do I know what is the risk of failure and how do I know what is the risk of spending to fix problems I won't have?
If I just look at Jake's 'cpo" list of fixes that starts to add up to some serious money and it improves your chances how much? And leaves how many potential failure modes? And how many yet undiscovered? After all the guy who had #21 could have had an engine with 20 fixes and it still failed.
How do you prove to yourself that just letting it fail and buying a used/"cpo"/new engine when/if it does isn't a better economic decision?
How many of the recommended fixes are said to have to be done again in some number of years/miles? IMSR/AOS/water-pump...what else?
I've spent thousands on cars over the years improving things that only got sold on to the next guy for no added money. Why not just take your chances?
I know that a lot of these questions don't have answers and I mean no disrespect to Jake when I use his name in asking them. Nor do I expect him to have answers. I doubt Porsche does. I only present the questions to cast some doubt that the answer is as black or white as some may make it out to be...it sure is gray to me.