Most suitable and effective isolation platform


I'm looking for the most effective isolation platform for my TW Acustic Raven GT.
Current options that I'm familiar with (but haven't tried out myself):
1) SRA Ohio
2) HRS M3X
3) MinusK BM-6/8
4) Kinetic Systems "Vibraplane" ELpF

Would love to hear your opinions/experiences. Also, if you have other suggested solutions - feel free to chime in!
iaxelrod
I tried granite
Very bright not tonally balanced

Wood on slab is good

The have both the vr and ohio series SRA platforms
They both work great
It's true that a slab of marble or granite will ring when struck with a hammer. The secret is don't strike it with a hammer when the music is playing.