Please noted that I've merged your new thread with your previously one...
Tazza d'oro wrote:The question actually is, my above rant aside, does the difference of approximately 9lbs of pressure, truly make an important difference in the result.
No.
Tazza d'oro wrote: Also, as I posted earlier, would Macap having only a 57mm piston yield an inferior result compared to the 58mm of an Espro? Incidentally, the Macap is $20 more expensive.
*shrug* Some prefer a tightly fitted piston, others like a bit of slack. If I had a 57mm tamper, I would do a NSEW tamp / Staub tamp, but I admit that's force of habit.
For what it's worth, I have both the Macap and Espro tamper. The Espro feels more like a "normal" tamper; some prefer the Macap's distinct barrel shape because it presumably encourages a better grip, similar to the Reg Barber Radical Pro.
From HB Roadshow - Espresso Tamper ReviewsI close with a second *shrug* since I place the importance of the tamp way down on the list of critical contributors to exceptional espresso, especially since it's also one of the least difficult skills to master (e.g., proper dose/distribution is much more challenging, as is diagnosing the cause of taste defects).