How much difference does this new S-1 switch make? Will it really make the J bass sound like a P bass when ingaged? Also, how different is the american with the S-1 and the J-Delux with the active pickups? And what difference? I like a nice deep tone(that isnt muffled) how do the jazz's fare in this dept? I know the P can do it, but I just dont like the neck.