Thanks Pottz.   Good question.  I went with barrel down because it made me nervous having them barrel up.  When I tip the cart to move it, the barrels would always be pointin at me head.  :)  Something about that was unsettling.  With them barrel down like this, they are always pointing away from me and away from anyone else.   This cart actually saves a lot of juggling.  When using a golf cart, the 4 of us would get off the cart, move to the rack by the station and put all our guns in the rack.  Then each person would shoot and they'd go back in the rack.  Then from the rack and back to the golf cart.    With this hand cart, the cart is the rack.  So you pick your gun up to shoot it and then it goes back on the cart directly.  A lot less juggling.

Thanks RyanGi.  Its funny the role our dad's play.  My dad passed a few years back.  The 16 ga I shoot was given to him by his grandfather.   It was made in 1926.  It makes me smile to be using his gun.  It also makes me smile to see my son using the gun that used to be mine.  As my shooting buddy says about sporting clays, "It's stupid fun!"  We go out, share some good laughs and spend some quality time with our kids.