I only make several shoots a year but when I do I put 50 - 100 rds, thru the gun, all Goex 2f. Cleaning for me is simply H2O although sometimes I put a small amount of windex with viniger in the stuff I use, seems to help cut the bp fouling a little bit, maybe saving about two patches. I do this immediatly following the shoot and then smear a 50-50 mix of tallow and beeswax down the bore, over the external area including the wood (this product is available commercially and known as "old zip" when purchased from dixie gun works). This mixture works well on anything BP. I use nothing else and have never ever seen a spec of rust on anything I own, and that includes all generations of Colts and longrifles. It is $2 a can, will last you a year. and is as good as any new wiz bang formula birchwood casy or anybody else is selling.
About once a year I will take the side plates off and clean all the internals using a "polish to take everything to mirror bright" cover with Type F transmission fluid (paraffen based and works well with BP unlike petrolium based stuff) and let it go. I do not use any polish on the external components of the gun as I enjoy the patina that the BP gives the brass frame externally. I suppose taking the side plate off and cleaning internally is a function of how much you use the gun. But for me once a year is more often than I probably need. The idea that you got to get in there and get all that BP out is nonsense. I have never seen any ill effect from my once a year protocol. Also, I don't know if the screws on the gun can handle being used more than once a year. The Italians must have not yet figured out the hardening process cause these screws are the softest known to man. I bugger them up every time I take them out, and eventually order new ones (also from DGW) cheap but it irritates me.
Regards, Jim