Cyril & 'cisco... 
Vicoustic=awesome! Been quite happy with the performance of the vented & fluted Quadraspire Sunoko racks & prefer them acoustically to the SolidSteel 5.5 which I had previously. As each shelf is decoupled with the rods, there is some slight footfall. I will go under the house & finish putting some more floor joists in!
I would like to get something under the MT10 & would be happy to try a few things. To begin with, I will try some Vibrapods with 1mm balsa discs underneath because they are cheap & easy to get... Not sure if I want to go way of the bicycle tube but I'm open to suggestions...