How about adding extra compliance to the lead shot base with a Gingko TNT specific Jumbo cloud 10 platform?
http://www.gingkoaudio.com/cloud10.html
Personally, I'd replace the CAT with a balanced preamp and use some inexpensive made to order Canare cables from Blue Jeans Cable and circle the room to connect the VTL's. If Canare is too pedestrian for you taste these have been a hot topic.
http://www.realitycables.com/contacts.html
http://www.gingkoaudio.com/cloud10.html
Personally, I'd replace the CAT with a balanced preamp and use some inexpensive made to order Canare cables from Blue Jeans Cable and circle the room to connect the VTL's. If Canare is too pedestrian for you taste these have been a hot topic.
http://www.realitycables.com/contacts.html