Ive done that a few time my rexy 500 shutdown the repowered in flight. Thought I had tx issues turns out there was only 5 strands still connected

 

Yes exactly! And what a huge difference it makes when you have a decent connection that affords no power loss due to broken strands of wire. Another thing to look out for is corosion or carbon on certain types of plugs. I found EC3 plugs were susceptible to this problem, not ec5 however probably because the contact area is large.

 

I use 5.5 bullets on anything 500 and up the cgase will have deans

 

I use the 5mm EC5 on everything including 450 size. They just seem to work. The 5.5 bullets are probably the best for optimum power transfer...

 

They transmit a ballistic amount of current ive had them wound out to 380A on a big rc boat

 

I had about half of a 12ga wire break behind an EC5 from bending. (Solder had wicked into the strands making it rigid, when I bent it I broke it) Running 12S it drew so much current that it desoldered in flight... twice :/ Saved the heli with autos, but it wasn't till the second time that I figured out what the culprit was. At first I thought it was a bad solder job on the connector, but after the second time I cut some wire insulation and found the break. Cut 1/2" off and resolder the connector, never a problem since. The separate 2s RX pack saved the day in these instances, and is why I use an ultraguard when I run with a BEC.