Quote Originally Posted by Kevin Cheng View Post
I'm a bit confused, so this is only beneficial for teams with under 21 signed players? Otherwise it would be exactly the same as regular resting? (Same cost and rest boost %)
This is beneficial if you don't want to use the boosters individually for the whole team.
It would seem that economically not so much.
Yes, you get the most from it if you have a number of players divisible by three. (15, 18, 21)

I tried it once as a quick solution to top off my guys between matches scheduled too darn close together. It worked.