I'd like to hear some stories of that moment when you decided to toss out the cartridge jobs and go 100% SR...

For me, it was about two weeks in. I was getting comfortable using mine everyday. When I was taking a shower the next day, I noticed the M3 sitting there neglected and opened the shower door and tossed it across the bathroom into the trash cylinder saying, 'I won't be needing this (explitive deleted) anymore!'