<HTML>   List       I know ,I know were not supposed to tighten the bloomin centripital resonator device on Mason & Hamlins but ya know this one was loose and causing a real nasty buzz.         I'm just finishing up the belly on a Mason A and it was alittle disconcerting to hear this coming from about the c-5 area. It did make me a little nervous especially after all that work to hear such a racket. I put the piano up on its side hoping to dislodge some remnant of construction but NOOOO.   While tapping on the board with my fist I hit the spider and it was really loose and vibrating.The loosest was the one going straight back to the end of the tail. I ended up tighting three of the rearward struts till I could just hear the case slighty creak / groan, you know snug.     Maybe it was my imagination but the sustain which was already good got better where it counts. I guess it does makes sense considering the case impedance was no doubt  enhanced.       I'll be checking them in the future              Dale Erwin</HTML>