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You need to give the tint time to cure. Your installer is the best one to answer your questions. Ideally, tint should be installed under dry, sunny conditions. Not usually a problem here in Charleston, SC. - Shady Slim's Tinting.
Ghosting? Global Window Films makes a very high quality ceramic tint. Ghosting has never been an issue and we've installed plenty of it here in South Carolina. Was your tint applied by an experienced installer? It's one piece or go home!