Are up rated gaskets available?
Maybe I'm just getting paranoid but my pressures do seem a bit low. However, I haven't noticed a knock on effect from it, and I meticulously check my oil level weekly.
There doesn't seem to be a clear cut answer though, as I see so many people say that it needs looking at, and just as many saying forget the pressures, level is more important, as long as the guage is doing something, then it's fine.