I'm thinking about getting a Full Circle pick up and installing it myself in a Shen SB-80. The only thing I'm worried about: When I take off the bridge and replace the adjusters, is the sound post going to fall over, seeing that it's no longer being pinched under the pressure of those strings? Is there anything I can do to keep pressure on the top and stop that post from falling over? I'd have my bass guy do it, but he doesn't carry Full Circles. He's a prickly kind of individual, and I hesitate walking into his shop with a pick up that I bought from somebody else. The bass has a spruce sound post that he hand-fit, so I'm not dealing with the factory-stock item.