I just bought some secondhand 2.5 Kings for my f1. i haven't had a chance to use them yet because I haven't gotten my coilbuckets, but in just cycling them, one seems to want to freeze up at whatever part of the stroke it is at. It will still travel from full extension to full compress, but it takes a lot more coaxing than the other. They are both uncharged at the moment. Is this something I should worry about? Should I get it rebuilt before putting it on my truck?