Cones vs. factory spikes?


Has anyone done any A-B testing for various speaker cones? Currently, my KEF REF 4s (120 lbs each, ported base) have the factory spikes. Before spending big bucks on Orchard Bay cones (used on Talon Khorus and recommended by my dealer) or Black Diamond Racing (why is their web site is abysmal?), I would like to know what others have used on the bottom of their speakers and if they make an "audible" differnce. Rest of system (for 2 channel) is: Aranov tubemonos, firstline pre, Sony SCD-1 (on order).
lornecherry
There was a thread from 2-6-01 entitled, "Talon Khorus owners, please read" that you might find interesting. The poster said the Sistrum SP-1 platforms were even better than the Orchard Bay cones with his Talon Khorus'. I've not used them, but their website is www.audiopoints.com. Good luck.
Try the BDR or Polycrystal speaker cones, thread them almost, but not completely, against the speaker bottom face. These two work the best for me on carpeting. If you're lucky enough to have hardwood floors, or VERY low pile carpet, try the Audios MIBs under the speakers. Wow. Like you, I despise the simple spikes even the most expensive speakers seem to provide as factory equipment. Awful sounding, and don't inspire structural confidence, at least to me. I always fear the damn things will shear right off with heavy speakers, you know?