I'm brewing a hefeweizen at the weekend (http://brew.grainfather.com/recipes/106315) and had a question about the White Labs Weihenstephan yeast I'm using. The recipe I'm using suggests you underpitch by about 30% compared with what the yeast calculators online might recommend to get a good balance of banana and clove phenols/esthers. However, many people online suggest pitch the usual amount and ferment cooler, say around 17C, to get the same effect. Meanwhile, the White Labs pack recommends pitching the one packet I have without a starter for gravities up to 1.050, which is pretty close to what I'm working with. All of which leaves me a bit confused about how much to pitch. Should I make up a 1L starter, or just stick the single pack of yeast in and ferment it out around 17-18C? Advice from anyone who's worked with this yeast before would be much appreciated.