Whereas I don't have the creativity for regularly devising and posting systems I can make a contribution to the forum by occasionally posting various analyses.
I don't find writing programs easy so output will be a bit irregular!
I'll make them Sticky so you can easily find them.
I hope you will find them useful in your endeavours.
Bot users could find the data particularly useful.
Explanation
The tables show the number of skips (misses)
Here's an example:
William Hill Slingshot 1732 spins
In order: Dozens1 , 2 and 3
DOZEN 1: SUMMARY OF SKIPS
TOTAL FOR SKIP 0: 173 [won the next spin so there was 0 skip, of course]
TOTAL FOR SKIP 1: 473 [lost 1st spin then won the 2nd spin...so there was 1 skip]
TOTAL FOR SKIP 2: 323 [...and so on]
TOTAL FOR SKIP 3: 233
TOTAL FOR SKIP 4: 154
TOTAL FOR SKIP 5: 93
And that's it. Quite simple really. (Bit like me)
And here are four sites that are packed with helpful stuff for your testing:
link:://:.win-maxx.com/statistics.html (link:://:.win-maxx.com/statistics.html)
link:://:.xerxx.se/oops/index.html (link:://:.xerxx.se/oops/index.html)
link:://invsee.asu.edu/srinivas/stdev.html (link:://invsee.asu.edu/srinivas/stdev.html)
link:://:.random.org/ (link:://:.random.org/)