My bridge length varies.
I tend to use a longer bridge for long range shots (where I also get down lower over the cue, and use an open bridge). But I also find that a longer bridge can be useful in some short range shots when I want to increase the distance the white travels after contact while keeping the stroke smooth.
Otherwise, I agree that a shorter bridge can help control, especially if you are putting unintentional english on the c.b.
IMHO a key to using a long bridge successfully is to make sure that your back hand control is good.