How do you guys connect a bec?

[pinkpanda3310]

This is the first time I've used a bec and was wondering the best way to connect it. I figured a plug would be good so I came up with this idea. I know it's not the best as it will unbalance the pack and likewise if I use 2 packs but with this method it will always have 3s feeding it on a 3s,4s,5s,6s set up. The bec I have is limited to 5s so now I'm not restricted to a 5s set up. I can plug in the rx only if I want (with out the esc) and it's a simple set up.