Best valve cover gaskets?

Well, all that is available around here is Fel-Pro rubber unless I want to wait and order something else. Patience is not my strong suit. They seem to leak at the tabs that are supposed to hold them in place. I think I am going to cut the tabs off and use a sealer similar to Gaskacinch (not available here) to hold them in place during install. I'll let you all know how this works. Thanks for all the advice and posts!