I tried an aftermarket gasket once. I don't see the need to RTV the gasket in the places not instructed unless I am re-using a fairly new gasket.
I'm sure I will Kyle. I was some what confused about the different parts numbers for what it should be "one" common part. But, for what I see, not all SR20DE's valve covers are the same.
Between B13 and B14, I cannot think of any difference. But manufacturers will do this all the time. They could have simply changed who they purchased the part from, and bam, new Nissan part number assigned.
EDIT: B15 is a different gasket set part number but I think it is the same actual part.
I have been using Fel-Pro for a couple years under as much as 28PSI boost. I have had a few leak when I don't get them cleaned enough and I always grey rtv both sides of everything. Done this on Hightport, RR, and VE.