Have 3 BRX that will be sitting on vti rf stands but unsure how to use the blu tack. Do I remove the rubber feet from the bottom of the BRX?

Hi Ghost223, First, I would recommend leaving the rubber feet on the bottom of your BRXs. Next, Blu Tack is really non-hardening adhesive putty - that doesn't damage the cabinet finish of your speakers. I'd suggest using 4 x "globs" of Blu Tack that are reasonably thick - so the Blu Tack is thicker (or taller) than the small feet that are attached to the bottom of the speaker. This should work quite well. Happy Listening!

Great thanks