"Tickling your roots" (loosening up roots) as an old gardener I used to know called it, really isn't necessary.
As @Tnelz @CBDEMON and other have mentioned. Use your mycho mix. What I like to do is if the existing root ball is moist which I assume it is when you transplant I then water only the outside edge of my new pot. My thinking is when the root ball starts to dry out the feeder roots will spread out seeking the moisture at the new pot edges. Although I cant verify if this works better or not just something I think works.
BTW @Lazerus00 you did a nice job splayn them gals out. :D
Happy Easter all. Hope you all have a great day!!!