Well I have made up 1 gallon of fuming nitric acid and am going to mix it with my reagent grade Hydrocloric around 37% i think. At 1:3 1 gallon nitric to 3 gallons hydrocloric. I did not want to go into this half assed so i have been doing much reading from this site. And I must say that the info that I have aquired here is amazing. Fun good humored people and so much knowledge. From what i have gathered just keep submerging the honeycomb pieces in my solution until they no longer fizz and react while submerged. Then it is time to drop my metals from the acid solution. With my 1:3 acid solution what would be the best way to drop my metals out? And in what order should this be done? I have read a few ways to do do so but would love some input from someone who has done this with the cats before. It took me alot of time and trial and error to make up a gallon of that fuming nitric and i would hate to screw it up now. About how many should i be able to do with four gallons of the solution i have made ?? any approximate numbers? or is that hard to say??