Unstable mount is just bloody awful
I have a Lawson L251 large diaphragm condenser on an Atlas stand, and the sE Electronics Project Studio Reflexion Filter will not hold the microphone in place. It is not the stand that is sagging; it is the finicky contraption that holds the filter in place. It keeps sagging no matter how tightly it is attached to the mic stand. And again, it's not the mic stand.
I'm not one of these people that usually complains about products, but this is a goofy contraption that does not work effectively. My friend, who is an high-level engineer who graduated from Cal Tech, took a look at it when I began complaining about it, and immediately commented at the mount, saying that it was unnecessarily complicated, and that he would not be purchasing one of these.
The actual filter works fairly well. But ask yourself this question: do you want your large diaphragm condenser to be sagging several feet above the floor? Didn't think so.