JDENredden is on the money here. I have one half-dollar that I have 24/7 on me: It has no milling whatsoever. In fact, it edge is smoother than the face of the coin itself.If you were good you dont need milling. Its better to practice in the worse conditions then when you have milling it will be super easy.
J.
When I palm a milled coin it actually feels like there is glue or adhesive on the edge. Not to mention a muscle pass literally flies up too.
Hope this helps,
-Chase