Once upon a time, Like, 50 yrears ago, I had sticky reels and I used to give the two (upper/lower) spirals a scrub with the shoe brush. No polish, just what was on the brush. Worked wonders.
Another thought is - do you use detergent (Photoflo) at the end of your cycle? I have heard that some sticks to the plastic spiral and binds the works up.