Yes, the Astore is Aelle tubing, in my case Aelle R, so a tiny bit lighter.
You're right of course, the Squadra is the real race horse of the range, and very foolishly I decided to watch one in my size on ebay recently. Someone, more sensible than me, cut a deal and the next thing I knew the auction had ended (five days early).
Having just built my Astore up, I can say that the easiest way to lose major weight would be to find a lighter fork. But once built, it does feel like a pretty balanced package.
Mine is finished in the American team colours, which was part of the appeal, and is built up with all modern components, as it is to be a regular ride, once we get some dry weather.
I'm very pleased with my Astore, and as a first venture into the world of 80's European frames, it's been a pretty safe undertaking, rather than risking a higher priced 'name', only to find I've bought a pup.