Weird seeing my Reddit post screenshoted here
But yeah I've been daily driving the JLX ever since I got it in early August.
The bottom line is this: it is an incremental improvement to the JLF. If you don't like the JLF, the JLX won't change your mind. But it does address the problems the original JLF had, namely in better parts and a larger actuator to decrease deadzone/quicker engage.
It is very interesting that Sanwa decided to put in a polished nylon pivot, as one of the good things of the JLF was how smooth the pivot actions are and the lack of pivot pop (which is a trait the LS32 has). But yes it is still very smooth, maybe a tad smoother than a JLF.
The real noticeable difference for me is in the larger JLF silent actuator they equipped in the JLX. As I said before, the deadzone has been reduced and the engage is a tad quicker than the stock JLF actuator. Personally I had to readjust some muscle memory from a stock JLF that I was using daily before the JLX, I wasn't used to hitting the switches that soon so I was getting misinputs for awhile. I can understand where @cfx is coming from preferring some deadzone slop, but I think the JLX has just the right amount of deadzone.
But overall I am relieved that the JLX is not a downgrade from the JLF. The changes in parts were long overdue IMO and makes it a better lever, even if changes feel more like an incremental improvment. I'm quite happy with using it for both shmups and fighting games.