I think this is why BVM states in the Kingcat manual that you should use only JR heavy duty gold plated leads with your JR radio gear.

Over the years I have found that many of the off brand "after market connectors" do not make a good connection to the JR leads. I use Hitec servos and receivers for prop planes and in this case I do use Hitec servo leads. I think it is a good idea to stay with whichever brand you are using for all connections.

This is common sense I guess if you think about the fact that the pins in the connectors are not the same type of connector pins, same manufacturer, etc. In the past, I have disassembled two different brands of male plugs and measured the pins with a micrometer and there can be a substantial difference in pin size which will probably not make good connections to JR equipment.

It was very expensive for me to buy all JR brand leads for my Kingcat but I think it does eliminate any potential problems in this area and it is not nearly as expensive as buying a new Kingcat. Gary