In the first 250 hands there is exactly *one* 3bet pre between the accused colluders. That hand both players had AK and got it in pre after the others folded to chop. The bet sizes post also seem to be smaller vs each other than vs the marks. I think there is enough to say they are at the very least soft playing each other and card sharing. Obv SwC has all the hole cards and i would expect there to be some very damning hands. Too many coincidences for me.
Well done SwC.