Vents in under tray for the clutch vents

Has anyone drilled some small vent holes in the undertray where the transmission vent is to remove some heat from the clutch to see if it last longer, I was thinking about this while it was is off. I was looking at the under tray while it is off doing some other major service belts and such, valve cover gaskets and camshaft seals, and exhaust and the vents from the tranny rest right on it, hence why the holes in it if it is closed off by the tray.

By the way the valve cover gaskets replacement is a pain in the you know what, but it's better than the alternative paying the dealer multi thousands, nothing against them they do fine work but I have been working on my own vehicles for many years.