A buddy of mine is having problems getting his convertible top up far enough to latch when he leaves it down in the well for a few days. Is this normal? Should the top always be latched up to avoid problems? Is "down & up the same day" pretty much a requirement for easy function?
Always leave it up when stored. This keeps the canvas stretched so that you can get it up and down as needed when you want to use it. There are stringers that stretch with time but they can be replaced if they ever sag.
If you have a plastic rear window that zips down (and up). I always zip it down prior to lowering. If you leave the top down with the window zipped down you should be able to 'store' longer (a couple days perhaps) with the top down. Zipping down also helps protect the plastic from cracking, especially in lower temps (60's approx.).