When I started out my goal was to get bass with the best qualities of that produced by Magnepans (fast and articulate w/ a big soundstage) but with real dynamics and power.
Well.....goal met! With St. Louis Bob's suggestion to go w/ larger baffles, and getting the settings dialed in, I couldn't be happier.
So

to Danny!
I want to get 2 more drivers down the road for more headroom, but I could easily live w/ this setup. In fact, my next purchase will probably be more GIK panels.