Nothing wrong with Super Tech Mercon V. I actually just put some in my truck's PS pump today...out of a 3-4 year old bottle.
In the transmission I have used Super Tech, Castrol, and Motorcraft. Never any difference or problem. If it's named and licensed as Mercon V, it's good.
Right now the transmission has Motorcraft in it, but I just bought that because it was cheaper and easier to buy a case through work than to go to Wal Mart to get Super Tech.
I think Motorcraft is a ConocoPhillips product.