Thought I would just do a quick write-up on my EPI spring replacement to let everyone know how the ride changed. Just a little background. My machine is stock with the original tires and rims with 3000 miles and the machine had the polaris sag. I was worried about upgrading to HD springs but I have to say it was well worth it. The ride improvement is very noticeable. I would not say the ride was more firm as much as I would say it is more balanced. The front would really plow on turns and it felt like it may tip over. With changing the front and rear springs the ride is so much better. My year of machine has the progressive rate springs in the front, so that may also be why it didn't feel a lot stiffer. I would highly recommend the upgrade to the EPI springs because the cost was under $40 a piece and the ride is much much better. I haven't taken a full trail ride yet but I can easily tell how much more stable the bike is and less likely that it will bottom out. Once I upgrade the tires the ride will be even better.