hello, a pretty basic question, but I'm new to the DB. I need to fit a bridge to my bass. I know that with violin bridges you put the new bridge in place, roll a pencil along the body of the violin to draw a line on the bridge then sand it down to the line, so that it fits properly. Is the same technigue used on a bass bridge? Will sanding work on the (much bigger) bass bridge? If not, what would be a good idea? cheers, Olie ps: quick reponses would be very appreciated as I need the bass this afternoon!