If you was to up a viper or skullders or basically any armor to an elite armor before you corrupt, can it get 4 sockets?

Like should I up every skullders before I up so I may be able to get 4 sockets?

And if that works… would a 4 socket skullders be worth way way more that a 3 socket one?

Not possible on PD2.

Corruption:
Armors (Helms, Chests, Shields) = 1-3 sockets (72% for 1, 20% for 2, 8% for 3)
Weapons = 1-4 sockets (40% for 1, 32% for 2, 16% for 3, 8% for 4)

Larzuk's Puzzlebox: 1-2 sockets

Good question I have a vipers I been holding onto because I need ko rune but I don’t need to go get max sockets?