Jim, Thanks for the link, all kinds of linseed oil. I will have to spend some time and read up on them all. There is a shop here in town that carries Grumbacher and other makers, I'll have to ask about the different stand oils. looks like the best way to find out is to buy some and try it.

The last alkanet root I bought was from Ebay. I'm now experimenting with the red coloring that is used in agricultural gasoline like Shelhamer is purported to have used.

MP Sadly Deceased as of 2/17/2014