Thanks. It sounds like the main difference is with their flowering. I've heard autos are made using ruderalis strains, which are native to Russia, and flower based on age, rather than time of year. I'm just guessing, but since Russia (like Canada) has a lot of light during the summer, these plants evolved to do their flowering whenever they reach maturity, rather than waiting for mid summer to trigger them. I can see how that would be convenient to some growers. Generally I don't have a use for autos but I foresee potential situations in which they would be handy.