This seems to be happeing more often to my Kapex, when the bevel is locked there is still movement. I'm in the habbit of alway checking to see that my bevel angle is where it needs to be but this is getting annoying since I'd like the bevel to stay where I set it. Is there an adjustment that will allow me to tighten the bevel lock? My Kapex spends most of the time in the shop and gets transported on site only when needed (3-4 times a month)