[thom4782]

This is simple...

If you want a bullet proof fix, put an IMS Solution in before you bolt the pressure plate back on.

If you don't want to go that route, call Charles at LN and talk to him. If nothing else, he can tell you about the development and testing of the roller bearings that come with RND engines. Roller bearings may carry more load than ball bearing, but the issue with rollers is thrust control

Here are my personal opinions.

Original IMS bearings can come out of cars and look pristine, mine did, but if the grease has washed out the countdown to failure clock had starting to tick already

Probably any unsealed bearing would work...the Porsche bearing problem was degraded seals let the grease wash out but prevented splash oil from lubricating the bearing adequately afterwards.

Ceramic bearings last far longer than steel bearings. The limits LN puts on it's ceramic solutions are guidance about when to consider replacements, probably conservative recommendations at that. These limits are not statements about end of life.

I don't know if LN bearings - other than the IMS Solution - are far more durable than the alternatives, but the engine will likely fail for other reasons before the new bearings fail. In my car the main timing chain rail is on its last legs.

I agree with others...if LN bearings were so poor, the forums would have made that clear long ago.

Roller bearings may carry more load than ball bearings, but the issue with rollers is thrust control