I chose the PS to counter-weigh the OEM gas tank on the DS. Plus, I just like the way it looked better on that side and it doesn't obstruct the rear view as much as you'd think.
The jerry can does seem to lean away a little. Not sure why. I guess its better that leaning into the tailgate.
Nice job. I have one of the Wildyoats bumpers and it's been great. I only have a single swingout but I put it on the passenger side as well. My reasons for the swingout on the passenger side was to counter the weight of the driver. For me at ~160lbs, the swingout with spare is probably just about the right balance.
if the can does, in fact, lean out, you might want to see if you can get it more vertical.
the difference in force on the swing out is pretty big.
ie: with the top of the can leaning away from the truck, every bump makes the can act like a lever- pulling the swing gate out and twisting on the pivot arm.
if the can is vertical, then the force is simply directed downward onto the bumper. Much better, long term.