Just a small thing to add incase anyone doesn't know, if you find one of these berries that you plan to use, put it on the berry island in the Poké Pelago so you can produce a lot more.
I haven't checked, so let's say each berry gives you six and it takes a day(12 hours if you use poke beans) within two (or one) day(s) you can have 36 berries that can take away, according to Burning__Karma, 360 EV points in total.