Hi, and welcome to the forum. I've experienced the same problems with OME springs. I'm using the "heavy rated" spring, and now on the second set. They sagged pretty bad under the weight of the winch bumper and winch. If I had it to do over again, I'd look into getting a heavier custom spring, with the added length built in. I found a spring maker that will make them to spec, about $300 USD. Pricy, but if this set sags soon, thats the route I'm goin', unless I can get ahold of some Calmini front springs that aren't totally clapped out. You can also find plenty of info on springs by searching the archives. Good Luck