I received my Polymax 5.5 mm bullet connectors from Hobby City this morning. They are big and nice and without wires on them, you need pliers to pull them apart. I am just wondering about that cut out where you solder the wires. I would have preferred a hole instead of a big cut out like that. To get these connectors undone, it would be necessary to pull on the wires so they have to be soldered correctly with a strong bond. I'm afraid these big cut outs limits the surface area where the wires are soldered onto, making that bond between wire and connector weaker. This is just speculation on my part as I haven't installed them. I looked at all my lipos I just redid with Deans and I don't feel like starting over again
