Bottom of trailer paint?

So I'm doing the ez-hauler build, and the flooring is 3/4" Dry Max Cargo Panels https://cache1.buildgp.com/wp-content/u ... AQ-pdf.pdf
So the question is: should I go to the extent of disassembly so that I pull up the plywood and paint it, or just paint it from the underneath. I guess I'm wondering if missing the spots where the studs are underneath is a big deal.
So the question is: should I go to the extent of disassembly so that I pull up the plywood and paint it, or just paint it from the underneath. I guess I'm wondering if missing the spots where the studs are underneath is a big deal.