Two out of two isn't the right way to go. What happens when the losing party refuses to let go of their funds? You will end up in a long (possibly 'permanent') stalemate. Just use what was suggested in the link that you've provided:
The losing party want to receive 0.1 btc for the lost side.
We can rise it to 0.2 btc or to 0.5 btc if you want