Muscle-ups

Skill	Vigor
Type	Gathering
Tier	8
Level Required	80
XP (Success)	160
XP (Fail)	16

Duration

Base duration = 10 − (level − 1) × 0.01 seconds, independent of the activity's level requirement. Each duration source (cape/pet, tool, gauntlet milestone) removes a further 0.2s, floored at 1.0s.
At level 1: 10.0s. At level 99: 9.02s before sources; a fully-decked (40-source) action floors at 1.0s.

Success Rate

Success = min(100, 50 + (level − 1) / 98 × 10 + sources)%, where each duration source also adds +1%.
At level 1, 0 sources: 50%. At level 99, 0 sources: 60%. A fully-decked (40-source) level-99 action reaches 100%.

Loot Table

Item	Weight	Chance
[T0] Jar of Sweat	9	45.0%
	11	55.0%