I'm assuming the gaskets you are talking about have either a integral or removable locking strip and are cut to fit the opening, then set the glass it in the gasket and then install the locking strip?, if so the overlapping gasket is a little more forgiving when cutting the glass pattern but sticks out from the body a good 3/4" or more. if your glass is cut to the correct size the inside style of gasket is a cleaner look and in my opinion seals better, good luck! and use soap/water mix as lube and plastic bone tools to install the glass then seal the glass to the gasket with silicone or urethane to really keep things dry.