it cuts real nice , carbide bits work great

i cut around 3000mm/min at 12-15k rpm , 3mm doc on a 6mm end mill

finishing, i try use .3mm stepover or less , but it sands and polishes real easy, just go thru all your grades of paper starting at 220 grit up to 2000 grit

cant think of any do's and donts :S