I should be receiving my hardware later this week. One thing I will have to take a look at is keeping the correct tilt. Hopefully the hardware supplied is able to accomplish.
Please let us know the difference in sound once installed. I am especially interested because I see your M3s are partly sitting on carpet.
I am surprised that people get such positive results with the GAIAs and Spatials. But given that Clayton is including them in some speakers as OEM tells me you guys are onto something. The physics don't make much sense to me, given the inherent design of the speakers, with no top brace to reduce movement of the baffle.
As for me, I (currently) am happy with the sound of my M3s. I also think the GAIAs detract from their elegant look. Not that looks should stop anyone from chasing the audio dragon, but the M3s are a particularly good-looking speaker as is.