Hey!
Thanks for offering to expand our knowledge on these things! If I may make a suggestion though, better compare one or two variables first, specially if you arent very experienced with extractions.. things can get overwhelming and messy when there are so many containers you are playing with (I say this from experience lol), and the side by side isnt as accurate..
Say for example you have 6 jars that you are using different solvents or bases or whatever.. Lets say you mix the solvent in all jars, and then after 5 minutes you separate the solvent layer of the first jar, and that takes you a few minutes.. When you get to the second jar, the solvent hasnt been standing there for 5 minutes , but rather 7 or 8 or 10. By the time you get to the 6th jar, the solvent has been standing for waaay longer than the first one (unless you have multiple lab slaves working for you working simultaneously.... I always wanted some of those

) So if that last jar has a higher yield, how do you know it was the variable you wanted to compare, or rather simply the time difference when it was standing there? I guess you get the point...
Obviously I dont want to discourage you from experimenting, but just talking from a practical stand point.. You can always do another extraction in the future and compare another variable or two or three.
Regarding what to compare, maybe others can chime in what they think is a good idea.. I can post something tomorrow, but right now gotta care for my hungry belly

Be well, and good luck!