Those who have seen other posts will note that Bob Branstetter and I don't always agree on weight and sound. Years ago I was absolutely convinced as Bob is that weight kills sound. The reason I don't necessarily share this opinion anymore is two fold. First, I've played too many basses that I could hardly lift that have had fantastic sound quality and volumne. Secondly, we are putting on brass low C and B extensions at KC Strings that absolutely open the basses up. A few weeks ago, Anton finished two new basses. One I loved, the other I thought was good, but not as good. A few days later they put on an extension on this bass and walla it was both louder and had an overall bassier sound. I haven't worked with the AO-BO principle that Bob talks about. On my own basses I tend to put in smaller bars and I don't like too much weight, but as far as the relation to sound is concerned I don't think weight by itself is the deciding factor. Bob, your turn.