oops........
I've messed around with mine exiting the lines front (best, for me) and rear 
and either will work so long as the safety stop lever is on the outside where you can get at it. Fortunately, all the stuff you need to get at is at the front or rear of the car - not too much going on in the middle, usually.
The biggest thing to not screw up is to have both of them reasonably parallel to each other once located so they lift equally and in the same direction. If one is a little off, they'll let you know with complaining creaks and groans on the way up (I think it's the sound of the rubber blocks sliding slightly to try to maintain position). They don't have to be dead nuts parallel, but eyeball close.
Hey, what is that piece of gray PVC pipe behind the rocker panels for? You got some trick undercarriage "glow lights" under there??