basically, "below" the collar should be a patch of white that is roughly 2/3 the size of the metal end.
does that make sense?
picture 1f in the manual shows it.
metal tip and white exposed, all else under collar
I think I follow what you're saying.
But I took a picture just to be safe.
I know the retaining collar isn't on in this picture, I left it off to show I pushed the ceramic rod up just until the silver collar was no longer visible.
Hope this is right? But I'll wait for someone to tell me before I put it all back together, never was good with instructions