Hey Chance, yes the Delta triangle does float while holding zero with the gun. This way even if your head isn't lined up just right, the bullet will still hit where the tip of the triangle is.

JDK, you're welcome. Glad to share the sickness. I had a Burris Fast Fire III on the Encore previously, but didn't like the star burst dot either. So far I like the clarity of the Delta. Once I get it sighted in, I'll be able to speak on how it compares.