I'm confused by the instructions for this yeast. It says to rehydrate at about 75F, or alternatively to sprinkle directly into wort, as long as it's no lower than 68F. But it's a lager yeast, and I planned to ferment a pilsner at around 50F. If I go with the rehydrate, then it's going from 75F into 50F wort. If I sprinkle, it starts fermenting at 68F, which is not such a great temp for a lager fermentation.
How do people use this yeast to get a good lager ferment?