Canuck wrote:Any way around this...or is it a given that you have to find that point each time?
You only need to know the "true zero" once per burr set. When you replace the burrs (and I think I am about due to) things will likely change. If you remove the burrs (meaning you actually unscrewed the burrs from the individual burr carriers), things might also change, but only slightly.
When you take a grinder apart for cleaning, on reassembly, you just need to be sure that you have threaded the upper burr carrier down far enough. It is possible to hang up on a dirty thread or compacted coffee and think you are there, when in fact you might be one or more full revolutions of the upper burr carrier above the proper location. A quick check for the chirp, and you know you are truly there.