IME, BRY-97 is more temperature-sensitive (with regards to cold fermentation) than other strains of Chico (and the like). While I have fermented Pacman as low as 52F once (56F on several occasions) and US-05, WLP001, and WY1056 have all given me good results in the 58F-60F range, BRY-97 hasn't enjoyed temperatures below 64F for me. I still slightly prefer it over US-05 because it has been a little more flocculant for me and hasn't ever given me the peachy "dry yeast" flavor, I consider it a much more delicate yeast than the other similar strains.