I have heard that this can be done, with care, but just saw a post about how the curvature of the vent and the curve of the windshield have enough of a difference to make it not really worth attempting.How about it? Any attempts and successes or attempts and failures? I have the vent, just don't want to cut the hole and not be able to secure the vent to the windshield! Stock shield on an 2012rt? Thanks!