do any wilson watt puppy 7 owners put isolation

Do do any wilson watt puppy 7 owners put isolation devices under the spikes of the wp7?

This would be directed to people I suppose that have hardwood floors like myself.

I am currently using inexpensive $30 discs sold by the store that sells the speakers but they are very thin and still have a tad too much base even though I use two spacers for the wp7.

I have tried all sort of placement positions for the speakers and have already treated the ceiling and wall behind the speakers and its a living room so don't have the option of adding more treatment products.

thanks

Michael