The reason for that is because $10 lay bet won instead of falling over.

The idea of the $10 lay bet is to reduce the overall Liability & it sounds like its doing its job if it breaks even , otherwise there could have been a loss if one did not do it the way you do it.

If you want the others to show a profit , then drop the $10 lay bet, but now one is exposed to much greater liability if any of those bite you & will take longer to recover.

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Cheers.