LMSC Did you pick a taste difference between the 9 bars and 10.5 bars shot please? Thx Dave.
Have not done enough carful testing to be able to answer this one. I also suspect it might be different for different coffees and temperatures. For me in an unexpected (sort of unexpected) discovery. This is because I have also been talking with Paolo about changing the timing of the actual main water valve opening, ideally with a removable, or adjustable attachmentā¦so something different again. It would be a purely mechanical solution and with later talks, possibly retrofittable.
All possibly because of a design quirk of clone LSM groupsā¦.or really something the cloners forgot about when they made modifications to the original LSM design to improve it..