This video used data collected from hours of testing on when you should group or solo and if you group how big of a group should you make.
Figure out the fastest way you can get experience in your setup. You’ll learn things like how 5 characters in a group is actually less experience than having 6 as well as some creative ways to use this information.
You don’t have to box an insane number of characters like I do to use this information. I was able to rapidly collect this data because I box so many characters so that others who don’t want to or can’t can benefit from the data without having to guess.