Bob's correct then, for a high wing - you need to raise the trailing edge of the wing a tad, not lower it. For only 3 clicks of down trim, I wouldn't expect you'll have to raise it much - start small.. 1/32" or so, shim till you have it where you want it.
Or sand the LE, but shims are easy, and you can try a little at a time, find out how much you'll need to shift it.