the first time i separated a condenser took it to the yard and my guy freaked.he never saw tubes like this and didnt know what to do with the alum. took it as alum. shavings and gave me same price as cans which is cool with me.he was giving 1.40 clean condenser i got 3.10 for copper and .60 for alum.well worth my time.after i cut off ends i lay it flat on my work bench. i screwed a board on edge of table just high anuff to keep condenser from moving as i score down the tubes.i us a adjustable knife with breakaway blades. you can ajust the blade to the depth you need and when it dulls you break the tip and you have a sharp tip without changing blade.after scoring one side i flip over and score other side one at a time pulling out tubes.alum. comes out smaller and fits well in a bucket.and i find if you wash them off with a hose get all the dirt out and let dry you dont get so dirty.hopes this helps happy scrapin