[fabianfred]

Thank you for your detailed explanation.... I wasn't meaning to complain in my post

I did try the first and fourth examples in your pack

you obviously know a lot more about it than we do...nice to have a professional on the team

I noticed when my train with the ammo trucks exploded it left black balls hanging in the air instead of the usual type of smoke...but they didn't last long

I do think that the AA smoke balls last a bit too long now though...which variable changes the duration?