Hi SoulKeeper
Thank you for playing!
We've gotten some other feedback that the iconography might not be enough. In the limited time, we didn't even consider any sort of in game tutorial or explanation. I will try to update the game page in the near future to give a little more context on what those cryptic icons mean, and what the differing wind conditions will do to your controls.
Good catch on there being multiple marked hoses. Looks like this slipped passed us. I think the original intention was to keep the houses that had been missed as valid locations (at least the mail made it to someone, even if it wasn't the person it was meant for!) but we will take this into consideration if we do end up updating the game!