This is my first time with this charging connector as I came from the FR 645 clip system, but I find the port very hard to connect and disconnect. Disconnecting is especially hard, I really have to pull hard on the watch and the cord for it to break loose. I also bought a 2 pack of those puck chargers on amazon DCR recommended and those are even harder to get off as I have to wiggle back and forth for 10-15 seconds to get off. Should I be concerned or will this loosen up over time?