ARB on top or underneath wishbones??

Currently refitting the front end of my car and the ARB is ready to be bolted back on.

Now I know I removed it initially from the top of the wishbones but I see some have it bolted underneath.

Is there any advantage to it being underneath or has anyone tried both ways?

Well to be honest when the binder strap brakes on the control arm if on the bottom you won't Ding the drive Shaft, but going over a pot hole you may catch it on the lip and rip the Bejeezers out of everything.  

All new brackets and bushes on everything so I'm hoping that wont be the outcome which ever way its mounted