Absolutely. We use them every time we mount, but the gator scraper is only half the battle. To get really smooth mounts (on anything, not just gator) you need the dust roller that Drytac also sells. It removes stuff you can't see. If you don't want to spring the $$ for the roller system (roller plus pads), they also have "tac" rags, but our experience is the roller works best.
If you are coming to Orlando, the roller will be featured at the "staying ahead of the curve" class.