I disagree with you on IMSR BS comment. Mine almost broke at 47K.
I think this IMS game is like playing a Russian roulette. The chance you you might get hit by one is small but when you get it, you are toast.
I'm not here try to tell anybody to get IMS replaced or help Jake to sell his product.
I had a clutch judder because there was a leak (RMS) and oil got to my clutch friction area. Sent it for clucth, IMS and RMS work and found that RMS was leaking but still went ahead with IMS replacement procedure since the car was already apart.
And guess what we found out....
My IMS bearing had some play on it(while new LN bearing has no play at all). IMS did not leak oil but play on the bearing really told me that my bearing was on the way OUT. There was no visible metal shavings on my oil filter, engine ran fine.
I was one who did not believe in IMS failure but after saw what happened to my bearing, I'm glad that my clutch problem saved my engine. OTOH, most IMS bearing failure happens on cars with low mileage
