Huh, I use it all the time and prefer it as a good finish for low cost. I was hoping you guys would tell me how to improve on my process. Here's how I do it:
1) get the part clean - wire wheel and rubbing alchahol.
2) get the acid hot - a crock pot works best.
3) keep the acid strong and clear of white dust - I use a funnel and coffee filters but there's probably a better way.
4) a fish tank bubbler helps move things around.
5) dip time should be about 3 to 10 minutes (depending on strength of acid) remove from acid and dip in tap water.
6) dab or rolle the part up in a towel - do not wipe it dry.
7) immediately (within 30 seconds) get the part dipped in oil - lay them out to dry. They won't dry - if the part does dry, you've made a mistake.
wait at least 24 hours, 3 days is better. Wipe off oil residue - done.
Other trivia - cut up some 6 in pieces of romex copper electrical cable. Each of piece isulated copper wire makes an easy adaptable hanger. Strip the insulation or throw in a piece of copper if you want a bronze tinge to the color.
Bruce