White stuff? Well, I tried it out when it was released several years ago but didn\'t like it very much. That is too say, too expensive for too little difference with Green stuff.
Behaviour and feel is very similar to green stuff. It takes sharper details a little better but has the unfortunate tendency to form a skin after a short while. So when you push the putty it may end up wrinkled.
Anyway, if you have a try-out batch - try it. It may well be you like it.
Bye, Ming-Hua