Diamond does not build per order, they do a production run of a 100 at a time. Don't know where you're getting your information from, but its not correct.Have no idea on wait times.
Glen knows where there’s plenty of Ballstars for sale so I guess there’s no wait time.
We were told that Diamond machines are built on order so I guess you have to wait unless they have one ready. That’s different than meeting demand.
Look at it like the Ballstar machine is a production cue and the Diamond machine is a custom cue.