counter19,
I failed to explain the "7's Count" very well.
When you use the indicated tags (-12 for 7; +1 for everything else), the TC divided by 13 is equal to the number of excess 7's per deck.
For example, if you have two decks with a total of 10 7's and 94 non-7's, the RC will be 10*12 - 94 = +26, so the TC will be +26/2 = +13, which equates to 1 excess 7 per deck.
Conversely, if you have 3 excess 7's per deck, the TC is +39.
So, since you need a TC of at least +30 to have an edge, you can instead think of that as meaning you need about 2.5 excess 7's per deck (actually, just under two and a third) to have +EV on the L2 sidebet.
By the way, I propose the abbreviation "L2" for Lucky Lucky, so as to differentiate it from LL = Lucky Ladies.
I hope this clarifies my earlier post.
Dog Hand
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