Thanks for posting that pic, Gary.
I agree with MacGeek that they would benefit from being raised up, which could be done with spikes. Adona has exactly what you need, their Multi-Element cones would kill two birds with one stone. They are 2.5 inches tall bringing the tweeter much closer to the ideal height while getting the woofer off the floor.
http://adonacorporation.com/tweaks.htmlI installed a set on my HT sub as it was just a little too close to the carpeted floor. Very nice quality and definitely improved the bass performance.