Thanks Kat. If you ever want to upgrade your lamps, looks like your diamond shines brighter than all the other bulbs put together! 
I've been considering the Vision X lamps too, but prefer to get a true fog instead of a driving lamp. It's all part of a lighting "strategy" I'm scheming.
Still need those exact measurements if there's anyone out there who can do it. It's not an emergency, as I'll get my own rig back in a day or so, but it would let me close out this one browser tab and shopping cart one way or the other. 
-V
-VI VX VNIVERSVM VIVVS VICI-