[thom4782]

Having sold my 986, this is probably my last comment on the IMS question.

Most people look at this issue in the wrong way. If all IMS alternatives have similar longevities, which is a big assumption in itself, the substantive issue then is what happens when they begin to fail.

Any bearing that fails in a mode that allows the engine to jump timing is inferior to one that doesn't.

My view is simple. Failing plain bearings cause less damage than failing roller bearings than failing ball bearings. On this metric, the IMS Solution wins.

So the question turns on does one spend more money up front (the Solution) to avoid higher replacement costs later (the alternatives)