I was having some magazine issues with my new SPX so I called Mossberg. They told me they no longer use the tapered end mag spring and would send me a newer version. The original mag spring was 23" long. The new one is not tapered, but is is 29" long. it went into the tube, and the shells load fine, but I haven't fired the gun since it went in. Is the newer spring supposed to be 29"? I would rather avoid cutting the spring, and doubt I would need to since it came direct from Mossberg. Anybody have an SPX without the tapered end who could measure it for me?