mine was like that but i didnt just spray it, i sprayed it, then put vaseline on it, then i had to move it up and down myself as someone else turned the radio on and off. i forced it up and down a little bit and tried to straighten it a little bit, if you know what i mean. dont get the wrong idea, i didnt go very tough on it. after making it go up and down over and over and working the lubricant into the cracks, it worked much better.
rite now it goes all the way down, but i still hear that weird "step" noise. i m not sure what that means.
let me know how you make out,

mike