I recently purchased a 6500 size spinfisher 6 and noticed some slop in the knob, noticeable enough to feel it clicking around on retrieve. I have tried prying off the cover of the knob but it is taking a lot of force and I'm scared of going further in worry of breaking the knob. I was wondering if this millimetre-ish slop is normal or could be fixed somehow as I don't think I will be returning it.