[GeoffM]

Incorrect.

They are playing $0.50/$1 limit. Therefore they are capping pre-flop at $12, but only $0.50 of that is raked. Therefore they are each paying $0.08333333 per hand in rake, and bringing in 2 FPPs. They are likely clearing bonuses while doing this, and each FPP toward a bonus counts $0.20. Since doubled in this case, that would be $0.40 per hand they are all making. Multiplied by 6 would be $2.40 per hand. Stars is losing $1.90 per hand assuming these guys are clearing a bonus. Actually is pretty clever on their part if they don't get caught.