I don't ever mist anything but clones but, if i were to mist i'd make sure that i misted at a time that allowed all of the water to evaporate, thus preventing the leaf burns that are the result of light being magnified by the water dropplets.
Hi im into week 6 flower i mist 2-3 times a week - it helps the plant in a couple of ways, helps prevent spider mites etc, and helps 'cool' it down after a 12 hour day. DONT make the mistake i did first and spray when lights are on.. I wait until 5 minutes before the lights go out and spray - i personally spray all over even the buds - but when doing the buds i hardly spray anything on just a light mist (at a distance) Your plant will love you for it. And by thwe way dont worry about some of leaves 'drying' your plant is at a similar stage to mine, and mine has the odd leaves the are drying, this is completely normal at this late stage of flower (you may also gety worried again soon as some leaves near the bud areas will turn yellow, but dont worry its normal aswell) Check out my thread - it shows when i misted and how she looks the day after.. Goodl luck dude