Switch would not move the slide bar under the Reed bank. Removed the bank and managed to remove the slide. I think there is a bit of warpage in the channel. Anyway I decided to open up the channel a tiny bit and see if I could fix the issue, took a thin foot long rule and wrapped it with 120 sand paper. Used a couple of small wood pieces to squeeze onto the thin sandpaper covered rule and gradually opened up the slot just enough for the slide bar to move freely. Works fine now.