Anyone try Cerapucs under full range speakers?


I've been curious about trying them under my Shahinian Diapasons. I have them on a suspended floor under which is my basement. I think the weight range is correct for the Cerapucs. Would like to hear from others who've tried something like this. 
tonyptony
So in this case, is spiking or decoupling the theoretically better option? (All determined ultimately by listening, of course.)
Decoupling. Even on a cement slab decoupling is better because the cement slab is moving, too, just not as much. Also, because decoupling reduces any tendency for mechanical feedback in the system.