Drill 'em both with your favorite layout.  The differences in the coverstocks and cores will create the different looks you seek.

If you want to create a greater variation of reactions, I'd go 4 x 4, pin under on the EPX T1, and 5" pin to pap, mass bias slightly right of your thumbhole, and pin up on the Full Swing.

I know those aren't the most precise descriptions of the layouts, but I'm sure you get the gist of what I'm getting at.
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The sun is the same in a relative way but you're older, and shorter of breath and one day closer to death.  
Time - Pink Floyd, Dark Side of the Moon