i have recently switched to smoking 'rollies' from regular cigarettes. i originally used standard green papers but on the recommendation of a fellow smoker began using blue or silver papers. despite the blue and silver papers having less paper (you can taste the difference), sliver papers burn the slowest, with blue coming next and then green burning fastest. why? also, although obviously smoking is bad for you, are there any health benefits associated with; the switch to 'rollies' (i previously smoked mayfair smooth, i now smoke drum mild and use filters), or the switch from green papers to blue or silver ones?