when i bought my true blue gt it had water spots on the hood,roof, and trunk lid...all the top surfaces of the vehcile. i thought some good elbow grease and some wax would buff them out. i have tried pollishing compound, claybars, and waxes but i can't get them out. i'm a little scared to do the wet sand thing but i'm getting to the point i think that's my only option. i had a big rock chip on my hood so since it was already messed up i wet sanded a small area just to see how it would work so i think i can wet sand the car but i don't want to if i don't have to. any tips to get etched water spots out? or any tips on the do's and don'ts of wetsanding for the first time.