Been tinkering with V6. Being away from it for over a year gave some "clarity" to some issues players have brought up.
Like simplifying some Usages. I can see places where it needs to be simpler, less steps, less "middle" objects too.
Also, what Greatest brought up (I think) about Usage taking too much real time. Players would rather spend the Stamina to speed work up than take real time. I made a change where it spends more Stamina, if you have it, and increases Work done on a usage. Instead of spending 1 Stamina per turn and getting 1 unit of work (not including tool and skill modifiers), it now spends 5 or more, to multiply the work done. So far works better but can waste Stamina so I need to fine tune it. The change is installed on the server/world that is running now though.
Looking in forums for what next major feature I can add. Leaning towards Magic.