just a quick one, what's the longest a dozen has missed
If you really want to know, here is an answer backed by long time research with real numbers.
Not testing software, and not guesses.
These are cards where I keep track of several statistics on the layout and on the wheel itself.
In 8 months of every day observations and recordings, 3 times a dozen was missed for 28 spins.
And one time a dozen went unseen for 31 spins. But this was not in the 8 month observation period.
Someone run up and got me and showed me a roulette with a dozen missing already 17 spins, and then I personally observed the remainder of the misses all the way to 31. (I had several other players look out for rare and unusual phenomena and report to me if they saw any).
Also a retired dealer told me that in his 25 year career he saw of heard about a dozen missing 36 spins once. ( dealers discuss unusual phenomena with each other) 25 years .
And once I saw a consecutive region on the wheel from 0 to 34 (10 numbers -French wheel), missing 48 spins. How you use this info is another story.