I am getting confused about the flight of the spark vs. the felon the more I read about them.
I was hoping the spark would be a little less overstable than the felon and firebird.
But there are so many different opinions on it.
People are just going back and forth about miniscule details. Some folks are comparing seasoned Felons and fresh Sparks or vice versa, or an opto metal flake Felon, or just one that's a little more or less stable than others, there are too many variables in play here
The take home lesson is: The Spark is like a Felon, but shorter. (You may or may not notice minor differences between individual discs.)