I had no idea that they made engine oil but here's some info.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=987080
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1325500
There must be some non-metallic additives that do not show up in uoa's because the uoa looks weak. Also, Blackstone doesn't test for antimony but apparently Alisyn has it. Antimony is a friction modifier and an anti-wear additive.
After recently switching to Motul 300V, and trying Red Line in the past, I don't think that I'll go back to a non-ester based oil again in my Forester. Due to the polarity of the ester base stocks, it clings to the engine internals and starts immediately. I got the 300V for free because I purchased it from a Subaru dealer with my Subaru Mastercard rewards (Subaru bucks). Other than RL or 300V, I would probably run
Renewable Lube Inc. RLI is vegetable based and uses copper and antimony as anti-wear additives.
Keep in mind that none of the above oils are API certified if that is a concern.
Just noticed that the viscosity of the Alisyn is barely a 20 weight. 20 weights begin at 5.6 cst's and Alisyn is 5.98.
-Dennis