Best valve cover gaskets?

I have a 318 with M/T valve covers. I found three invoices in the glove box from the PO having the gaskets changed. They were leaking when I got it. I just put in a new cam and changed them with Fel-Pro gaskets but I see they are leaking already. Is there a better gasket than another? Any special tricks to seal them? :banghead:

Fel-Pro's are fine.
A trick I have found to seal valve covers.
Clean the valve cover sealing area.
Gaskacinch the gasket to the valve cover. Make sure you put sealant on both mating surfaces (gasket,valve cover)
Do not put sealant on the gasket side that mounts to the head.
Let gaskacinch set up a bit, and then install gasket onto valve cover.
Next put valve cover on hand tight. Do not torque it down yet.
Let it dry for a couple hours, then torque to spec.

Valve covers now will not leak, and can come on and off.

What I have found, is most the time the oil "Does Not" leak between the head and gasket, but rather it leaks between the valve cover and gasket.