Interesting discovery when my carpets were cleaned yesterday!

I have some bookshelf speakers that sitting on some Dynaudio Stand 20 speakers stands. They are each filled with 50lbs of lead shot and my speakers are attached using some blue tack stuff (it helps hold them in place kind of like mounting them with screws). 

Anyways, while having the carpets cleaned I removed the Dynaudio spikes that came with the stands so that the speakers would be easier to move around as a whole because they weight 110lbs-ish each. 
When the carpet guy was done we put the speakers stands on some foam blocks to keeps them off the wet carpet until it dried. 
Later that night after getting the speakers dialed back in (I have certain measurements to get them back to where they were), I kept the foam blocks on the stands until I know they were right. 
Well, it actually sounds better with the foam blocks than the spikes. So now I’m on the hunt for something to actually use instead of the spikes. 
My room is carpeted  with carpet padding underneath on a second floor (a wood sub floor). So I need the ability to lock them down so they won’t get knocked over as I have a five year old. 
I’m not sure which type of feet I should use. Should I isolate or what what?
I don’t think I’d spend tons of money on something like this but I want to see what you guys would say. I’ve looked at the Gaia II feet and although they seem to come recommend I would prefer not to see them being silver in color...don’t know. 
Well guys/gals I purchased the Gaia II's along with the carpet spikes and I'm very impressed with the quality of the products and overall the sound in general. 

One thing I noticed is that I have a couple of go to songs that I generally play at (on my system & room at -25db) and noticed immediately that I actually raised the volume higher than I normally do by about 2-4db. 

Although these things are nice...very nice! My big complaint about them is that they make my speakers about 2" higher than before. Its something I could probably get used to but the other thing is that they are very noticeable items and actually bulky for my tastes. I would rather not need to see them at all. 

Given all that, I just don't believe they check all the of the boxes for the price point of these things. I mean if they sounded overwhelming of what I had/have, looked almost invisible, and didn't raise my speakers a couple of inches I'd keep them. 

I actually just put in my order for the Herbie's Spike/Decoupling Sliders. So we'll see how these things go. 
Yes I gather that Stand Mount speakers do not seem to benefit 
from Footers /Isolators/etc. I was told by the Manufacturer of one Hi End brand that his products would not work under speakers on Stands.

Caveat Emptor

Stand Mount speakers do not seem to benefit from Footers /Isolators/etc.
You cannot lump all stand mount speakers together.  Some are small light boxes on lightweight stands, others like Harbeth 40 series speakers are even heavier but have somewhat resonant cabinets, while others like my Aerial LR5s have cabinets as solid a brick and weigh quite a bit - 175 pounds for speakers and stands.  My experience has been either Herbies Giant Fat Dots/Gliders or properly sized individual springs (not so different from what Townshend uses) result in a better sound than when the stands are spiked to the concrete floor.
Harbeths have resonate cabinets, just the way they're designed to contribute to the midrange fullness. Mine sound cleaner and more dynamic with the addition of IsoAcoustic pucks between speaker and stand.
I agree with optimize about filling the stands partially for better stability.