Does anyone have a good trick for making the tower speaker electrical connection a little more reliable? Every time I put my speakers on, I have to spend a bunch of time rotating them just slightly back and forth, tightening, loosening, jiggling, etc. until I have a consistent connection that doesn't cut out. Often, I'll have good music coming out, then I give it one last tightening with the allen wrench and the sound stops. Then I have to back it off and continue the process. I always get it eventually, but when it takes ten minutes to get through this process, it kind of defeats the purpose of "quick release."

Is this common, or is it related to my specific mounts and/or speakers? It has always done it since new.