I do daily CO washes and I use the ponytail method to dry. I'm a type 4, also. I have a pretty simple routine and I always love the results. Here's what I do:
First I apply Suave coconut conditioner and massage in for 5 minutes. I then mix a few drops of the Suave with some apple cider vinegar (about 1/2 oz) and mix w/ about 8oz of water. I then pour the mixture over my hair. I don't rinse the mixture out. Towel dry then apply my leave ins. I spray Surge on my scalp, apply Giovanni leave in all over and a little QP Mango Butter to my ends then apply some Wildgrowth oil. Comb thru then put hair in two ponytails, twist and pin up the ends, then apply a satin scarf. When hair is about 90% dry, I apply some more Wildgrowth oil and put the scarf back on until completely dry. I just recently found out that the key to my hair drying so straight is the satin scarf. I think that what happens is that the scarf traps in the moisture while holding the hair in place.