I just bought a lime green secondary from epi. I tried to install it today unsuccessfully. I out a red and a regular green and have install both and removed them numerous times. The problem was that the lime green was fatter than the others. I had to force it into the collars on each end. Then when I compressed it the coils would not go down in the bottom collar and made it tilt. The model number is KSS8 and its for an 08 Brute. Do you think they put the wrong spring in the package or are all lime greens like this?