Had a pack of S-04 2 weeks ago that never took off. Had to add some washed yeast I had to get it going.
Don't know if they had some sort of issue or not, but I've never had dry yeast fail on me.
It's all beer from here
Primary 1- BM's Cream of three crops.
Primary 2- Paleface Scalper
Primary 3- Monks Reward (Kreuzberg)
Kegged - Honey Badger, Heady topper clone 1, Indian Paleface Scalper
Bottled- Skeptical Dog winter Lager, Hell's Belgian, Old Dutch Hiefer Hefe,Aphlewein, Chocolate Thunder porter, Jacked up lantern