Testing systems, by hand, on small samples of spins is fun, but in reality it's a bit absurd. If you're doing it for entertainment, then have at it. However, real research requires careful controls.
There is no way by which the player can derive any meaningful entry/exit points, in order to optimize play... when hand testing on just 30 or 40 spins here and there.
Attempting to do so is called "curve fitting". You're not going to find "exquisite symmetry" or "analytical combinatorics"anymore than you will find real bears and unicorns in the clouds. You also can not determine what the best "triggers" or "entry and exit points" should be.
Curve fitting is a fools folly. Meaningful testing takes place over tens of thousands of spins and hundreds of thousands of spins. Such testing requires careful controls.
If you want to test...
1. Make your observations
2. Form a hypothesis
3. Make a detailed prediction and carefully define the test. This is to limit curve fitting and the degrees of freedom. Periodically changing the rules along the way will lead you back to the "fools folly".
4. Test a statistically relevant number of spins using a computer.
5. Conduct additional out of sample testing to see if you can repeat your results.
Best of luck,