I was actually not thinking of playing both sides. I was just wondering if any one had records of playing the opposite.
It would be an interesting thing to track b/c the progression lines would have different starting numbers (after the very first win) and the 'fade' would actually have better odds on the parlay. i.e. tonight would be the 2nd game in the progression and would be 20 to win 69.
i started a separate column on my sheet to track. will report back if i see anything interesting.