Subject:
Content: depends on what sound you want.
the lighter the bridge, the more free the top is to vibrate. and therefore the more bass you'll have.
a heavier bridge will cause the top to vibrate less so the bass will be stifled.
this can be fine tuned afterwards with your choice of pins.
Brass pins (heavy) will controll a bass heavy top,
bone pins (light) will allow a bit more bass to escape.
VIEW FULL VERSION: Link