Sandberg has had their lightweight series, Spector now has basses that are 6.6 lbs. Manufacturers are listening and lightening their instruments. When Sire first hit the scene, the instruments I was able to try were ungodly heavy, just picked up a rack full of Sire basses (individually) and they were all decent weights. No scale, so I can't tell how light, but another manufacturer that's listening. But at what weight are we going to start complaining that it doesn't have the sustain, doesn't sit right on the shoulder, miss the tone, etc? Personally, I like 8-8.5 lbs for a four string and 8.75-ish for a five.