You can only crash chill if your kegging to stop the yeast from eating the sugars and retain some sweetness. If you crash chilled and then bottled, once it warmed up it would start fermenting again and boom. (Bottle bombs).
Having said that my last brew I added a bottle of buderim ginger Cordial (750mls) to the boil and it retained some sweetness through to the bottles.
Also saying that I do like my gingers dry Lol.
All my variations have been good except when I crash chilled to early and it was to sweet.
I fixed that, but that's another story lol.
Not sure of any case swaps, but there's a home brew club that meets at Hamilton once a month, can't rdmember when tho.