I think the idea of prolonging the bubble is a great idea, from the first two hands it sounds like the big stack was playing great.
But really, would you actually collude with your friend at $1 SNGs? I would not. I go to a casino and sit at the same table as a friend of mine $1/2 $300 max, and we will get into it in the same hand if we need to, even though I know he wont bluff me and I wouldnt do so against him, we still will play against each other.
Online, I would be more likely to collude at $50 SNGs and it probably wouldnt work for too long before being caught.
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