I feel like I've been taking awful conservative cuts, and I'm wondering if I should step it up a notch. If i'm cutting 6061 aluminum on a bridgeport with a 2 flute carbide end mill, what spindle speed should I be running? How deep a cut can I take? Feed rates I think I'll be able to feel out, but if there's a certain setting on the autofeed dial that works nicely I'd appreciate that as well.