In the last 10 years, Gore has been at the forefront of modernizing guns and hydrants, replacing pipes, and adding pipes to trails that didn't previously have snowmaking. But they have not kept up on increasing their water capacity, especially as they increase their snowmaking footprint, and commit to hosting competitions that require a lot of snowmaking.
Gore used to have an air-centric system that was largely built in the 80s and 90s. Back then, there were no low e guns, so unless it was sub-zero, air was always the limiting factor. If a resort wanted to increase snowmaking capacity, they added more compressors. Most were diesel powered, and many were rentals that were returned after the snowmaking season ended. Starting in the late 2000s and still continuing today, they have put fixed equipment and low e guns on most trails. When that happens, snowmaking capacity is increased, because the maximum water capacity is reached more often. But once that maximum water capacity is reached, it makes no difference other than saving money. Even after the 2018 upgrades, Gore is at the point where their snowmaking footprint is too big to cover in any reasonable timeframe. They need to upgrade their water capacity again.