His method is, essentially, what I've been doing for the past several months and having great results with.
I always cowash/poo then follow with a rich RO in the shower.
Usually I do not use a LI.
Always use a slimy curl enhancer ("filler")
followed by a gel ("sealer")
2C/ Coarse/ Normal porosity/ SW Florida/ Transitioning to gray
Cleanse: CJ Daily Fix, JC Cleansing Cream, TJ Tea Tree Condish
Condish: JC Too Shea, CJ Curl Rehab (both as RO & LI)
Stylers: UFD CM, CJ PP, JC Spiralicious, Darcy's Cream Gel & Cocoa bean whip