Hey guys, I have my first gun with a break on it and I am having some trouble cleaning the break and the crown. I've got wipeout, shooters choice, and coppermelt. The other day I put the break in the corner of a bag and squirted some wipeout in with it, worked pretty well but didn't get all of it. The crown is a problem though, the carbon seems to be good and thick on it. Will it hurt the crown to rub it with a paper towel with solvent on it? How do you guys remove this carbon from the crown and the break?