Heres my thinking, oil pan rail on engine is a smooth machined surface. So in my mind shouldnt require "goop". Pan surface is not so smooth, so that is where I put the goop. A thin smear, lay gasket on, let it tack up a bit, then bolt pan on finger tight. Let sit over night with no fluids. Snug up next day.
Make sure surface on oil pan is flat and smooth with no mount holes "pulled in". If they are flatten with a block of wood and hammer. How I do it, there are other ways.