Mine has the same end cap but the spring is around that centre post in the middle, it is definitely V2, Black Chrome one the same. With the issue around the larger spring, if I had it, I would solder a bit of copper wire from the bottom of the spring (ontop of the bottom loop) to the underside of the top loop. It would need to be not too thin stranded copper wire though. It would make a quick fix for the high resistance of the spring. You would need to keep an eye on it though. It would hold fine until you got a new one. Not sure how the new ones work, must be ordinary springs copper plated?