ORIGINAL: strutnbuck
On another note, periodically you will have to adjust it as it "wears" as well.
I've not adjusted mine since I installed it and got it where I wanted it. Mine is about 1/16 - 3/32" but not quite and 1/8" from touching the string. And I've been pleased with it. I have probably 2,500 shots on it and it hasn't moved that I've noticed.