I was very disappointed the first time I used Wyeast. It was pretty expensive compared to the dry yeast and did not appear to work as it should have. There was very little swelling and it did not mix properly when shaken.
It had me pretty irate with the cost of it and all.
I had picked up two packs at the recommendation of the home brew suppliers that day.
I broke out the second today. I smacked it, it swelled nicely, mixed nicely, and started working quickly.
I will guess that I might have gotten an off pack the first time around.
Anyway, the 3068 Weihenstephan appears to be working nicely and I'm looking forward to tasting the stout I used it with in the near future.