I'm similar to Mikey.
I hold the very top of my front bead dead even with the very top of the rear notch, just like I'd even up the top of the rear, and front post in a regular square notch, and post sight set up. Then I sight them in to hold dead on, with the bullet just "kissing" the top of the front sight.
I also, once I've sighted in, don't use the adjustments for elevation. I use them like Elmer Keith. If I'm shooting at longer ranges, instead of raising the whole sight picture, I drop the rear sight under the front post for elevation. That's absolutely the only way you can consistantly hit accurately at extended ranges, especially on small targets. If you try shooting longer ranges using the traditional way by raising the whole picture, you'll be covering your entire target, and having to guess where on that target you're aiming.
Once you get used to shooting this way, you'll never go back!