In the process of doing some recent modifications on a few of my bolt-on basses, I have had to remove and replace a few necks. I noticed that on several instruments, the holes through the body for the neck attachment screws seem to be either stripped, or perhaps were drilled too wide to begin with. With the neck removed, the screws just loosely fall out of the holes. Fortunately, the holes in the necks are all fine, and take the screws firmly and snugly. So functionally, all of my necks seem to be secure and perform fine when tightened in place. But it seems to me that if the screws fit the body more snugly, that would probably be beneficial for transferring tone, wouldn't it? Is it normal for the screws to be loose through the body, or should I stick some toothpicks in there to firm things up?