I have a 2004 boat with Springfield taper lock pedestal seats. Really hard to remove I live on saltwater and don't know if thats the issue. I even purchased a Popit boat seat release and still have problems. On the springfield web site they said if the seat sticks don't use wd-40. ( They're advice is push on the tab and while pushing on the pedestal with you hand.) This does'nt work I know other people must have the same problem because all 3 of my seats have issues.