Great job on sharing the knowledge...
I "loaned" my younger brother a Super Speed with some 7 O'clock Permasharps, a Tweezerman brush, C.O. Bigelow by Proraso and Thayers WH. He has been using cartridges since he started shaving just like me and we have similar thick wiry beards prone to ingrowns. Gave him a quick demo when I gave the goods and typed out an email with a bunch of links to the different videos and forums. Need to send him the link for this one now! Checked in with him last week and he is using the new stuff on the weekends or so he said.....oh well all we can do is try, right?