Using putty.

Hi all-

I was wondering what techniques you all use for using putty on aviation models. Since getting back into modelling after ~15 years I had never used it before. Now I think that it is the cat's , if only I can get it to work right. The only application tool that I have is Squadron's Precision Putty applicator. Now that I think about it, it probably isn't the best tool for general putty use. I have ordered a general putty applicator from Squadron so that might help.

So, for the experts here. How do you apply it? And is there anything special that you do when sanding?

thanks!