Flight Schedules overwrite

[Toyuko]

What happens to my older PIREPS when i overwrite the flight schedules with new flight schedules?

[CPC900]

I found, that as long as you are just overwriting them, everything is fine. But if you were to delete the old schedule and then add the new one, you may lose something. I was trying to do a summer and winter schedule awhile back, and I would clear the old schedule and then upload the new one. That was not the way to do it I can't remember what I lost or what was stupid about it, but I did have one of those "oh crap!" moments