My favorite curl enhancers are Jessicurl RR or AG Re:coil. If I use RR only, I usually use about two puddles. If I use Re:coil only, I use maybe two dime-sized globs. It's easy to overdo Re:coil. However, I have recently been loving a bit of both mixed together. I use a pea-sized glob of Re:coil and one puddle of RR. Mix in my hands then rake in. (My hair is a bit past my shoulders when dry and curly, a bit on the thick and coarse side, but not that much.)

I find that I get curlier hair when I rake. If I scrunch only, my clumps are bigger. However, scrunching only does not distribute the product evenly enough. So some parts are nicely clumped curls, but other parts are fuzzy and the curl falls out so easily that they are almost straight by day's end. Even and thorough product distribution is key.

Too much raking, of course, breaks up the clumps. My compromise position is to limit myself to only a few "rakes" when applying curl enhancer and then I lean my head back and shake my hair to re-form the clumps. I then scrunch in gel so it sort of bonds around the curls and clumps already formed, boosts them a bit, and gives the whole thing hold. This, at least, is the general idea.
2b-ish--embracing my waves this summer
Aussie Catch the Wave condish, L'Oreal NutriGloss condish; Nexxus Designing Texxtur Cream, Rusk Radical Creme, Pantene Curl Defining Mousse, Paul Mitchell Sculpting Foam; coconut oil for DTs