Rods out the back of the boat

I usally just spider rig out the front of my boat, but occasionaly i fish 3 others with me. me and another on front spider and 2 out the back. What rod length do you prefer out the back of the boat. Right now I use your 12ft Sign Series that BP carried for the front. and some old 7ft rods i have out the back.
Thanks
jp

You cab still use some longer rods out thew back to cover the water i like at least 12 ft