LMSC Of the all the brews, just two of them scored 8 as you had observed some flavours. Those two posted maximum yields! I wonder what will happen to flavour, if you were to focus on maximising the yield.
The yields there were high, but only in the context that the coffee was a higher extracting Ethiopian, which will average higher than say the Guat, it was also the cleanest roast. It’s easy to simply increase EY, you grind finer, but if the grind you have is already silty that’s going to offset any gains in clarity with more silt.
Highest extraction so far was a poor brew from the Burundi, silt & film obscured any distinct notes (hence I have set the Lido/Kinu coarser, this may yet prove to be a mistake as it’s not an issue I have had with other coffees).
To put it context, previous brews with this regime & Niche were averaging 8.00, so I think the grinder and EY of these recent brews are not showing any clear trend, above noise, in the face of the coffee quality.
To recap Hoffmann said the Wilfa gave him higher clarity than the Fellow Ode, Rowsell said the opposite, Wendelboe said the Wilfa was better than a Vario with Ditting burrs…so no help there.