Mercon V IS synthetic.That Wolf is probably an excellent product but clutch packs now can be torn up by using wrong product in them, some are still basically chemical treated paper lining. No sense in messing with that. The simple difference between Mercon (not syn)and Mercon V when V first came out had Ford flipping out as their mechs thought the two interchanged and doing so wrecked a lot of trannies. Later on they remixed the V to then work in both and now there is no Ford Mercon at all, only V type. As they found out, switching around can easily burn your -ss.
It's all about clutch material compatibility, the other parts in trans you can pretty much throw anything ATF in there and they will love it. Of course syn oil shines there as the death of all ATF is heat, where it does best.