Brad,
Here is what Steve said about the RL3 tweeter:
"Hanging in free space this tweeter is never smeared from direct-coupled cabinet resonance."
Hrappur,
Steve instructs one to tilt the speakers back a bit to address your concern.
I just realised what didn't jive with me about the look of these.
The 2 dispersion plates aren't joined together at the corners like they were at the original Zenfest:

Corey