Mine was up for 5+ years before it fell. The nut failed. Was not overtight. Bad luck that is all.

When did the design changed as I just mounted m3's and was hesitant about the fmb.


2xAA
M80/VP150/VP160/QS8
4xM3/M22OW/M2OW/VP150OW/4xM3IC/4xM3OW
EP500/800/HSU VTF3/SVS PB2k/SB2k/SB-12