No sludge collected in media or filter can like seen in all my previous non-OE filters. Oil is black as ink as for my typical 170hr/3600mile run.
Filter case is knowingly thicker than most aftermarket filters. Took a few extra spins of the 'pipe cutter' to split.
Spring loaded internal bypass is good stuff.
Silicone ADBV also functioned fine. ADBV doesn't need to be silicone to work well.
Media is still just like typical cellulose media and undamaged from usage.
My only issue is that there is nothing in the media or can that shows anything "blocked". Did all the soot pass thru the media? Most likely. I'd wager that it was the same ~50 micron laughable specs seen with -03. All that abrasive carbon soot simply blasting your engine. Bearings must love all that carbon grit.
So, the -04 filter doesn't seem to be any better than the -03 filter. New PN means nothing.