I have done a lot of research into different combinations. It seems to me that with Miner's Moss you get a lot of blond sands that fill up the pours. Carpet gives you less blond sands but does it catch the gold?
I have purchased some speciality highly profiled rubber mat that is surpose to catch and hole fine gold. It seems to work on the small quantity of concentrates I ran.
Does anyone have any experience with other combinations or the above?