Cheap tweak from Virtual Dynamics:

Might as well make sure the screws stay torqued too.
http://www.threadlockers.com/vibratite.jsp

I torque screws on my spring guns (pellet guns), and use vibratite to ensure they stay put. One of the nice features of Vibratite as a thread locker is that the screw can be removed and inserted several times before it needs retreated.

I'll probably dig out my Utica 6 -30 inlb screwdriver, and try this tweak. My Gemme Audio Tanto speakers do not have grills, and the fronts are black, so the fun part will be blackening the brass screws.

http://www.modelboatyard.com/blackening.html

USblues - In da middle, and mine is cal'ed by a friend who works in a calibration lab.

Also a good point about messing with $$$$ speakers too. I plan to start with TAD 805. With the Tanto speakers I will walk the torque setting up to see if any turn, and might leave them alone, depending on what I see.

I could not find brass screws which were a close match. I did tighten the screws on my TAD 805SD a couple inlbs. They still sound great, especially for the price, but nothing startling to report here either.