Yes it's 18:1 for the 4 streak. I know that my result for the HE off the top matches wizard of odds (3.2%).
Comparing my simulation win/loss/tie per TC was lower then what I got from the form you linked. I will have to go back through everything again to make sure there wasn't some baseline mistake on my end.
My sim was also not using indices but still wouldn't be cause for 0.5% differences in the win/loss percents.
Edit: I will actually have him double check the sidebet at the store.
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