Floor standing speaker isolation advice needed.

Anyone (geoffkait?) think the IsoAcoustics Modular Aluminum Series stands will translate the same Performance as their smaller stands and footer devices???
Im thinking of trying them under Harbeth 40.2 (that I want lower than traditional stands for this speaker). The 40’s like the bottom to ‘resonate’ just like the rest of the cabinet and are getting good reports gently resting on top of the extended tenons on the TonTrager stands, so I’m wondering if the ‘rubber cups’ on the IsoAcoustics will kill some of the resonance that is making these speakers sing a bit more.  I know, Tough specific question here without trying... and no trial with the Modular Aluminum Series. Drat. 

I’m high on mass-on-spring isolation devices which have become ubiquitous. In the beginning there was Bright Star, Vibraplane, Townsend and yours truly. It’s like walking a tightrope or a razor blade trying to balance all the variables - internal damping, spring rate, number of directions of isolation and load capacity and of course cost. I eschew getting rubber but I suppose a little bit can’t hurt much, and too much slows things down too much. For myself I forego all rubber and almost all internal damping, preferring very hard cones, high carbon springs, high mass and extremely stiff boards.

@jriggy Whilst you may see improvement by trying out different stands with the Hatbeths don't forget that they are probably the most advanced speakers ever built when it comes to controlling resonances.

Everything from driver material, driver mounting, and panel resonances has been meticulously considered by the designer. In fact the designer, Alan Shaw once said that you could place them on a stack of telephone directories if you so wished and they would still sound good.

I'm sure he's right. I just wish all speakers were designed and built with such care.

@cd318, thanks for the reminder. While  choosing my stand solution and height, I have the speakers up on wood frame w/ granite platform amp stands. There were sorbothane ‘half-ball’ pads Gibbon under the granite—bad!
So I replaced with hardwood blocks—much better!
Then one step farther, was raising the speakers off the amp stand surface with 1 & 1/2 inch wood blocks at corners only—even better! Letting the bottom of the M40’s breath freely, like the TonTrager stands achieve, does seem to benefit... so with this finding, your reminders, and geoffkait’s comments on rubber (which is where my concern was), I think I’ll forego the IsoAcoustics Modular stands for these particular speakers. 

@jriggy Yes, you shouldn’t need fancy stands but it definitely a good idea to let all the speaker panels breathe freely. All Harbeths are constructed that way to allow the resonances to fall below the threshold of hearing in terms of frequency range.

The M40s have always been fantastic speakers and are the sum of one man’s attempt at getting as close to neutrality in the midband as possible with the fewest compromises. Does any speaker do voices better?