This is heart warming to read and you are describing to me magic moments your friends are rediscovering and lets hope it continues to improve further but wow.
This is how a fellow member on our forum summed it up . Beautiful.
P.S with the mighty you get the storz and bickel plastic grinder and for plastic its good .
I use a flower mill grinder from amazon for £12 that’s cheap and easy to use.
Cheers for relaying this ajn and so happy your dear friends are benefitting .
We're on the train to Bangkok.