I came from X4, I have X6 as well but I didn't care for it so i went back to X4 until I went to win 10, then I had to upgrade. I use all of Tom's plug-ins so I had to email him for the updates but everything else works great -for the most part- X8 hot keys tend to stop working towards the end of the day so I have to restart it. I hit "Z" for the zoom tool and instead of zooming out on a right mouse button click, it will zoom in until maximum level is achieved. junk like that.