MylastUOA was on a Champ Labs-made Super Tech filter 3593A with clicker-style bypass valve. The comments section specifically noted "excellent oil filtration" because of 0.1 insolubles. Someone whould have to prove to me that Blackstone had any axes to grind or that the filter was in bypass mode any significant amount of time. As far as I'm concerned, the dual bogies on this forum - Fram in general, and Super Tech's adoption of clicker bypass valves and, unrelatedly, e-core technology in particular, are blown way out of proportion by people who do know better, but for various reasons (including commercial) delight in stirring the pot to maintain an artificial state of controversy among the easily influenced.