This comes down to if you have studs where the speakers are going. If not, shelves won't work either unless they are long enough for them to reach two 2 studs.
I have had a VP 150 mounted since 2005. It's a few pounds more than the m22 but your are real wood. It did fall. It pulled the screw out of the speaker, mount remained on my wall. It tore my projection screen on the way down, a screen that nobody makes anymore. I was not happy. Thick carpet saved the speaker. If you are worried, you can do what I did to fix the vp150 and put a thicker washer and bolt on the inside of the speaker then mount to the fmb but honestly I haven't read too many people having issues like I did, its very rare. I have M3's also mounted. There is a little wedge that comes with the full metal bracket, I believe it goes under the mount against the wall for their taller aka m22 speakers to allow for the extra weight. Make sure to use it.
Last edited by newf; 12/10/16 05:10 PM.