I have almost enough Liberty 280 on hand for my next post spray job, but not quite enough. Went to pick up some Liberty Ultra at my local chem. dealer & mentioned that I needed to add a bit to the Liberty 280 to have enough...

He said their rep told them not to mix the two. Anybody else heard that? I can't hardly believe that's correct...but I know that adjuvant chemistry, etc., can be more complicated than we expect.