I have never ran smoke before what is a good size tank

I think what eversize you can fit in front of the main tank. I find that 24 oz. is a nice trade off between weight and time. Seeing as I don't leave smoke on all the time, it's works out nice.

20 at least to make it worthwhile......up to 50 probably
I carry 40 on the bobcat and that will give me 2 1/2 if Ijust leave it on straight

thanks guys the way I did my tanks I can put 50 in easy