Gearing is now 16/51 Only have 16,18 & 20 pinions and all spurs are 51t. Driveline is smooth just the spur is little oblique..
I did the test without Eagle Tree. Im quite sure its the solder joints, what's causing it, Im not good at soldering, hehe. How do I know when the solder joint is good

? 4 wires to 1 dean isn't piece of cake