I think Keith (Muller) uses Mister Muscle oven cleaner to remove paint, but I'm not sure whether this was enamel, or acrylics, although I know he normally uses White Ensign enamels. Personally, I've never really tried removing large areas of paint once dry, but have had some success on very small areas, using thinners (on enamels) and a cocktail stick.Ii think in this case, I'd be tempted to rub down the model with a fine wet n' dry, polish it off, then re-paint.If you're able to spray a thin primer coat first, all the better. I've done this a few times in the past, when I've f***ed up, and the results have been fine - maybe cos I've been determined to put things right!!