I guess i said two different things there.. I should have said i think the specs call for .010 to .015, and i am going by memory,, and mine is set with two credit cards thick, and you are right the cards are .030 so mine is set at .060,pushed back., with the springs pushed back when cards are removed i have about .015,, this may not be the way you want to set yours but it is my way. thanks onehundard for pulling that info out of me LOL.