IsoAcoustic Gaia III with Focal Sopra 2

If I remember correctly, I think I had to separate the base screws from the speaker a little to get the original footer screws out. But, don’t go entirely on my memory contact ISO acoustics they can instruct you.
I also think with the weight of your speakers the Gai lll’s will not exhibit their benefit.

ozzy

As ozzy says. You have to loosen (do not have to fully unscrew) the four large screws at the base. Then you will be able to move the base away from the rest of the speaker enough to get the spikes out.
I successfully installed the Gaia III's on my Sopra 2's and am very happy with it.

I just fitted Gaia 111's to my Kudos Super 20's.  The installation could not have been easier, replacing the high quality spikes originally supplied with the speakers.

For a total cost of $400, this is easily the best value upgrade in sound quality I've ever experienced.  I've been a hi-fi enthusiast for 35 years and would never have imagined such an improvement from upgrading my speaker footers could be possible.  It's simply amazing and has has taken my system to a higher level.

I ordered IsoAcoustic Indigo footers for my amplifier this week.

https://www.wilsonaudio.com/products/sabrina/sabrinax/dealers
The Wilson better speaker for same money and much better 
resale value.

I went with the Gaia lll for my Sopra 1's with stands.  That about 12 lbs over the recommended max weight, but I think they're working out just fine.

Gaia lll with the Sopra 2's tho... I think that really pushing it.