I use both tbh, but I like manual start overall. For the F-16/18 I almost always manual start it, for the Mirage I autostart, simply because I havent bothered to learn it yet. TBH one of the main reasons I dislike the autostart it how inefficient it is. Being an airquake/air combat/BVR guy I really dont care for the full complete startups, its just not what I play for. I can literally start the F-16 in 30 sec manually, the Hornet under a minute (excluding INS alignment). Meanwhile the autostart seems to take forever. Just my 2c