I had 3 days to study for COMLEX after taking USMLE and it was more than enough time to get through COMBANK OMM. The only thing I did was COMBANK OMM questions (about 150-180 a day) and read saverse to get my viscerosomatics, chapman points (green book doesn't have all of them though), and other OMM weak areas down.
For treatment positions it is a better idea to study and understand the moa/reasoning behind ME, counterstain, HVLA, etc... Most of the positioning type questions give you the dysfunction and ask you to set the patient up for a certain type of treatment. If you know which are direct and which are indirect you don't need to study individual techniques. The only things that require memorization are the weird ones, like some of the posterior cervical counterstains.
I did not do the rest of COMBANK, but I can tell you that I felt pretty confident leaving the testing center about how I performed and I'd say its because I completed UW, Kaplan, and Rx. Haven't gotten my scores back yet but I was hitting 700+ on my COMSAEs. COMLEX is horribly written and I almost found I did better on questions when I starting reading the last sentence first. Half the time the half page HPI that they give you in a question has nothing to do with the actual question. So you read a story about a unicorn herder on candy mountain who is vegetarian, has asthma and a size 13 shoe, a family history of cancer... and then you get asked about the mechanism of action of an antibiotic one of his unicorns accidentally ingested from when he was being treated for TB or how to set up his posterior rotated innominate for muscle energy.
((( test on Monday. Been blasting through COMBANK since Wednesday lol
