[bbartlog]

mostly at PLO8 ($6.5 and $16)

You have to wonder why they bothered. If I were going to go to the trouble of colluding I'd at least try to make the extra return worth my while. If you assume they gained an extra 10% ROI (each) from their cheating, you're looking at a buck or two an hour. Further I would expect that collusion and multitabling don't go together well (too hard to keep track of what goes with what), so multitabling would actually be a better way to increase profits assuming you had a decent edge to begin with.