I have not put any conditioner in it yet. I might consider it though.good job on the resurfacing and block prep and reusing the old head bolts - that is all proper procedure, well done.
i would not have used no name headgaskets on an engine with such prolific head gasket issues, but who knows that's purely speculation on my part, there's nothing quantitative available, but i wouldn't want to guess on this motor.
Fel Pros are coming as MLS, you have to check which years i'm not sure the break down yet - in some varieties and only cost $33 with online discounts from advanced auto parts, etc.
did you use Subaru's coolant conditioner?