my best friend who was in a cal-m clan in 1.6 (his skill level was prolly more like cal - p/i though) number one complaint was his inconsistency.
As for your reasonings for going ahead with the ban, like i told dice, i get it, and unfortunately its hard to disprove something like that aside from someone actually living in my area, or teamviewer'ing my comp randomly when someone thought i was actually cheating. I'm not going to lie, i'm even surprised with how things have just clicked for me this time around with CS, but hey... i'm not gonna complain about it either : )