yah it looks like you are supposed to have it attached horizontally. I also added:
https://www.amazon.com/gp/product/B0197OP4PU?pf_rd_r=JT9HWN79ZSE4RN9NDG7J&pf_rd_p=5ae2c7f8-e0c6-4f35-9071-dc3240e894a8&pd_rd_r=e3853dd1-fd80-4d86-a606-9d24c0707a55&pd_rd_w=ycgGQ&pd_rd_wg=ixZgQ&ref_=pd_gw_unk
I was thinking running one rod to the left so I can attach the Tilta and keeping the battery clear for switching out.