Hi inna
The last time I was playing with the 57's was in one of our Tunable Rooms that a good friend of mine has, about 5 years ago. I didn't have the Chameleons there, but did have a sweet pair of the Rev 60's. The 60's ate the Quads for lunch and then some. But set the Revs aside I enjoyed the Quads as I always have.
The Scala doesn't hit my taste buds right. Body is something very important to me and the Focal fell short. I've always wanted to like Focal but they leave me empty and fatigued. The Quads on the other hand have all kinds of tweaking potential. But compared to your Chameleons you would get bored quickly I think. The 57s and 63s are classics and a ton of fun but they have their own thing going on no matter what someone does and it's either going to hit you right or can leave you wanting more.
Always makes me happy to hear you enjoying the Chameleons.
Michael Green