Can you lock up your disc brakes?

Ask yourself "when is braking least effective?" The answer to that is "In a slide". So with that in mind, it sounds like you have a pretty good setup now.

Just for experiment's sake, get out and try some hard braking on wet pavement. Not at speeds to lose control of course, but to see IF it will lock the brakes, front, rear, or both and if one or the other locks first or both.