Levels 1 - 10
Learning not to ruin the hide while handling the knife.
Levels 11 - 20
Can clean and prep standard hydes for the local market.
Levels 21 - 30
Experienced in skinning tougher beasts with thick scales or fur.
Levels 31 - 40
Knows the muscle structure of every creature perfectly for a flawless cut.
Levels 41 - 50
Can harvest the rarest skins from legendary beasts without a single scratch.