Scott, I have used traditions, also, BUT cannot get it in five gallon buckets, like I can with GAC.
Strange, but back in the old days, in grad school, I could not afford to buy gesso to seal large canvbootyes, so found that Sherwin-Williams A100 house paint really did the trick, at a much more reasonable price.
I may give the loxon at a later time. Just happy that I have figured out a way to get along with the GAC 700. I think it may have something to do with production.