Who HASN'T done the IMS Retrofit (and why not)?

[Perfectlap]

my dual row bearing was in PERFECT condition when it was replaced with the LN IMS.

But I think that's almost irrelvant. If there's a shop that has enough business to go through the time-consuming and expensive process of inventing a contraption that will act as an early warning system, then clearly there is an above normal amount of catastrophic engine problems occurring.

Whether it was a manufacturing flawe or design flawe is also nearly irrelevant to me. The Porsche engineering dudes got their calculations wrong somewhere and then apparently, made things worse after they realized their initial error (single row bearing). Then you find out that you can spend $1,200 to do something about all this and you're still not going to? Personally I would do it with the clutch, even if you're old clutch is still good, and tell yourself you're good for another 100K miles with some engine maintenance as a side benefit.