Im new to this hobby and need some advice. Im getting a 2014 Mazda 3 soon and want to know the best Menzerna to get for a 2 step. I know Mazda has very soft paint and dont want to damage that. I was first looking at fg400 and then 4500 but im afraid fg400 will have too much cut. Would it be better to go with the si1500? Whennim done im going to be coating the car in 22ple. Thanks in advance .