Hey guys! I am building a custom quad copter using the APM 2.5 system and thought I could build my own power distribution set up and I thought it was good until I powered it up today for the first time and only 2 of the motors will turn. I was able to program and caliberate all 4 esc's so I know they are all good and they will all beep when hooked up to the receiver but for some reason the main power isn't getting to them allowing the props to spin. Let me know what you think. I included a picture of what I had rigged up.