Hey there,
Great to hear the 242 are working out for you, but I am a bit concerned about the polys you received. You should not see any kind of staples and for sure the plate on the bottom should have not came loose. If you would please send me a email at glenn.k at gikacoustics dot com and let us replace or figure out what to do. Trust me I want you to be 100% satisfied with the products.
I can also give you some links on how to use the french cleats you received from us (mounting).