Best isolation cones


Wanting to purchase some new isolation cones for my amp and Oppo 105. See Nordost isolation cones however wondered if they are really worth the extra money or are there any alternatives? One of the things I don't like about Nordost cost is how high they make your unit sit. Also I have seen other isolation components like Vibrapods or Pangea audio Mega feet at a fraction of the price.

Advice please

Thanks
morty74
I have had good success with the Black Diamond racing cones, but have never tried the Nordosts.
For those having problems hearing the difference here's the list from best to worst. Your results might vary.

NASA grade ceramics
Tempered high carbon steel cones
Aluminum cones
Brass cones
Carbon fiber cones
Nothing
Rubber and Sorbothane
Lead