I don't think storing your skis hanging them by their tips will do much, unless your tips are really soft, so they might flatten a little. There are ski storage floor racks that can also be used.
The main thing is that for between season storage, that the edges and base material are protected from the elements. That means cleaning the bases and sharpening the edges removing all oxidation and rust. Apply wax to both, but do not scrape until next season. I use either a soft wax [ any wax ] or a low moisture fresh bar of soap to protect the edges.
I also back off the pressure of the binding DIN setting, so mark it down so you don't forget where to set it up to next season.
Then, at the beginning of the next season, with your boots in the skis, restore the binding adjustment, scrape the wax off the edges and base, clean, check the the edge tune, and re wax. Then your skis are set for another season. Make sure you boots fit, and that your alighment hasn't changed.
Then you are ready for another season of happy skiing.