I will have nothing but cross fire rigging. It pulls the saddle down equally front and back. The girth is located directly under your stirrup. I modify all my western saddles or english to be cross fire.
Look at this site, the pair of endurance saddles second from the top are both cross fire. To me it is the only way to go' GG Flatshod Farms - Saddles
I will try and find pictures or my cross fire modification and post them