can't get my 9920 and 9xl setup to work with ubec

[nl12]

I got it all hooked up only on 14 cells for now (still waiting for 6 more) it would work with a lot of coging without the ubec using the bec from the controler, when i removed the black jumper and pluged in the ubec the throttle would not work. The steering would work but not the throttle strange? Does it matter if you remove the jumper when power is connected to the controler; because I messed with it multiple times and always had it unplugged when i removed the jumper, i guess maybe you have to remove it when it is powered up???, I'll try that when I get home from work.... any ideas why this is not working correctly, i would assume the cogging is from not enough cells and using the controler's bec does that sound correct?