FWIW....(and yes, I know what the brewery says, but they must keep some secrets).... I've been using Kolsch yeast on S & W pacific ale clone for a while now and I get much closer to the real thing than with US05. I ferment at about 22-23 degrees. I add hops only at 20 minute in the boiler and at the end via a hoprocket to end up with wort at about 16 IBUs. Then I dry hop at about 2 gm/litre for 5 days - after 3 days of fermentation. The other thing I've noticed very recently with S & W PA is an additional taste / aroma of guava (on top of the galaxy/passionfruit). Anybody else get this? My guess (which I plan to try soon) is a little Mosaic in the dry hop mix.