[mikefocke]

No one of us has the same risk tolerance or pocketbook as you.

Worst case is about 1% failure probability per car year. Unlike in a casino, some few lose big.

There are something like 28 modes of failure. Which should be addressed and which ignored is one of those great unknowns.

Imagine these scenarios:
1. You do the IMS and crash the car 2 weeks later totaling it.
2. You don't do the IMS and the engine fails.

Both can happen. Which will cause YOU the most angst?

I didn't do the IMS and got away with it. BUT I also had enough spare cash to replace the engine with a rebuilt/improved one (~$32k) should I need to, I have a high risk tolerance and I had another car I could drive for the months the new engine would involve. (That '01S is at 93k last I heard. But keep in mind that is a sample quantity one. Meaningless.)