French Bass Brace advice

[Adrian Levi]

Originally Posted by Matthew Tucker

Aah ... easy questions I see

Why do you want the back to vibrate at all? just asking.

Well Matt this is what interests me , should the back vibrate as much as possible or not ? Or does it really matter? Will my bass perform better if I fit a
middle brace of maple (heavy) or one of spruce...or once again does it really matter?