Makes sense. Really don't see how rollers over flaters really solves much. I've had no issues with my flat tappet motor (w/cam recall of course at PDI) for 33K miles. And the lash adjustments have been unnecessary in the last two attempts. I don't do short trips, nor do I let it idle while I gear up. Use the recommended AGIP and OCI's.But the consensus seems to be that the oil system over cools the oil and in cooler, damper, climates that results in the oil not burning off water. That leads to the oil becoming mayonnaise and that does not lubricate as well as oil. Making sure the oil gets over 212 degrees F is key to a happy motor. I think focusing on that is smarter than fitting roller tappets. Roller tappets do not resolve the actual issue, it is merely treating the symptom.