I got the dual blaster but it seems that it really puts out a ton of the abrasive media that I put in (80 grit aluminum oxide). Is this because the nozzle size is too big? I dont recall putting the nozzle on when I got it, but I do have the extra bag of nozzles. Is the “stock” nozzle the smallest size (2mm)? (or let me know what else is causing the massive output, this stuff is too expensive to waste like this).