Me too. I always used the hot soapy water and hot water rinse method for all my MLs. But recently I found a product called Turkey Tracks sold by Fort Chambers ML shop here in PA. The way you use it is to plug the breech, nipple, or flash hole and pour about 2 tablespoons down the bore, cover the muzzle with your finger and slosh the solution back and forth to wet the entire bore, then let it set for 10 mins. I then dump it out, remove the breech, nipple or flash hole, swab the bore with a couple patches until clean, a couple dry patches, an alcohol patch, dry patch, montana extreme bore conditioner, then wipe down the outside. Clean the breech or whatever and reinstall.
Like both of you guys, I find cleaning the ML relaxing and not really a chore. And the cleaning seems to go better after a good day at the range or in the field.