MM's specs:
A. When you reverse the bearing orientation, your adjustment range doubles for the maximum slot length you can fit under the hood. Our camber slots are 1.1" long, and when reversed the slots are effectively 2.2" long! Check the slot length from anyone who says that they can get that much camber adjustment out of a non-reversible bearing cup. You will not find any slot close to 2.2" long. Remember, any time there are two bolts in one slot, the effective slot length is reduced by no less than the diameter of the second bolt!
Yes, any adjustment to camber will cause the toe setting to change. For example, if you adjusted your normal street setting of .75 degrees negative to a setting of 2.5 degrees negative, the toe setting will change, moving in the toe-out direction. This toe change is due to the inward movement of the top of the strut when negative camber is increased. Since the tie rod length remains constant, and the relative position of the spindle is moved inward, the tire toes out.