[Roger V]

I agree with Tim on this. Having bought kits over the years I ran into some springs being longer than others. I've also heard of the C clamp technique. My concern was if I could get the longer spring to compress and installed, I couldn't know if it was virtually totally compressed. Then screwing the plug in to at least not have the ball stem touching on the hole might compress the spring further if possible. Obviously, I used the shorter springs but still had to use the original used cups. So the question is whether there are two different kits available today and how to find out.