No sweat. IMHO, more information that might not be necessary is better than not enough. And I really hope they make an automated way to import all the custom aircraft from previous versions. I finally deleted RF5.5, but I still have 7.5 & 8 installed, and I should probably kill 7.5, too. I haven't upgraded to 9/9.5S. So I had 3 installed copies + the originally downloaded files on my HD/SSD. I don't have to worry about disk space, though. I have a 1TB SSD boot/os/program drive, and a 3TB mirrored RAID data volume. And I've had to remember how to transfer them every time. I've had RF2..3..5..7..8. If I ever had RF1, I don't remember for sure, but I've been on the forum since 2000. The first version had the original 15-pin game port controller, and I think I got the USB InterLink Elite about 5.5.