Hrmm...
'AA Gaskets' make a few good points there.
Well in the end mate it's really up to you.
You could always assemble the engine with the gaskets dry & see what happens.

What will happen Ben, is that after you have done a few engines you will hit upon a 'magic' combination of assembly that will work really well for you.
I was merely adding my methods that have worked for me.

Yes, the Ultra Blue IS a gasket former/maker but I have found it beneficial to add a VERY thin film of it to troublesome gaskets that are in contact with lots of oil - e.g. sump, timing case etc.

Oh, & 1 last tip: I suggest wiping every mating surface where a gasket goes with