My New SC is working much better for me than my 6S when it comes to getting less irritation when going for BBS, but my neck still is left with some redness (rarely any nicks). I've tried many different techniques like buffing, riding the cap, zero pressure, bullfrogging, etc but nothing has completely eliminated the irritation (though bullfrogging helps quite a bit). Likewise I've tried many different blades including Nacets, Silver Blues, and Permasharps. What am I missing? Any tips would be much appreciated.