its not that it doesnt work. i think that the mod does work, but it works differently then what the stock prop does. i am still pulling some nasty stuff outa my tank with the modded prop but i just cant seem to get it to work as well as when it was stock.
also that is the same exact way you would mod the ASM pump. they are the same pumps and that is he way i did mine. the next thing i am going to do to my pump before i order a new impeller would be add 1 more layer of mesh making it a total of 4 layers. maybe this will make a difference in the way it performs enough to were i dont have to buy a replacment impeller. i also think it makes a difference on the type of mesh you use, i used PF4 flat back mesh but there are many different kinds out there that could be used.