Filter Sock Question

[Cubeman]

I tried them on my outflow from the tank to the sump for about 3 months. What I experienced was less skimmate from the skimmer and more weekly work for me in replacing the socks and cleaning them out. Went back to no socks and only put one on now if I know I'm going to be really mucking up the tank (moving rock etc.). Yes there is a little bit more detritus on the floor of the sump with no sock but I can live with that.