first I am personally not a fan of dross reducers. We have enough issues with contaminants on boards (high impedance analog) so i do not want to introduce more contaminants into the process. Second I have not had much luck with any dross reducers. We have come to terms that wave solder machines produce dross the more you try to prevent it the more dross the machine will make. Take it from me after 25 years of wave soldering Scope it out, put it in a bucket, recycle it and move on. And yes it sucks that solder has gotten expensive.