On dropping any of my 3 foci, I've never had a need for more than camber bolts. They allow plenty of adjustment if installed right, even at a 2" drop.
There are a couple things I notice you didn't say anything about when installing the bolts. First would be the tab on the washer needs to face toward the middle of the car. this allowsthe bolt to be moved toward the outside of the car therefore tilting the camber out. If faced to the outside it moves the bolt inward.
once faced right the bolt can be used to adjust the camber in or out as was intended.
With the washer tab facing the wrong direction you won't get the necessary adjustment needed.
Also, tac the washer when things are tightened up so it can't move and cause alignment changes.