Marzocci Shocks

I have seen these shocks mounted every way possible. Reservoir on top front, and back, and reservoir on bottom front, and back. Is there advantages one way or another. I need all the input (pros and cons)from you guys.

i thought the story on flipping the shocks upside down was that it simulated a preload or rebound dampning back in the day..when twin shocks did not have a lot of todays technology.....i think i read this in kevin camerons modern sportbike book when he was covering that era of superbike tricks.......

Reservoir on top is less unsprung weight which should help the ride, however if the oil is supposed to get pushed into a bladder it would be better to put the reservoir down.