RE: wire and connections adding to heat creation
Sure, Goldenduff, and thats what I was saying in my first post: Learn to solder.
Higher contact area (cross section) between wire and connector pin is better.
Smaller distance from wire to connector pin is better.
You can make Deans style T work incredibly well if you simply can make a good solder.
But Deans style T has a rectangular pin, joining to a round wire.
That doesn't automatically make good joints unless the solderer is giving this a thought.
And thats also why so many people has trouble with Deans style T.