I would like to know if anyone has used these to weather anything and what is your opinon on this product. I have never done any weathering yet so i really need some advice on how to start. Is there any sites to go to that would give you step by step instuctions on how to start weathering your rolling stock or even your locomotives. Any advice would be helpful and i would apprecated greatly. Sorry about spelling. I also have some buildings that i want to do some weathering to so i really do need the help here.I read somewhere that you can mix the powders together to get differant looks to things so please help.