i have been brewing at room temp for years but 2 nights ago i wanted to try something new. i brewed a pale ale with a danstar nottingham yeast starter temp range (54-70) it claims at lower temps it causes lager like smoothness. After my brew started to bubble i put it in a cooler filled with water and have been rotating a 2 liter bottle of ice every 8 to 10 hours. temp stays pretty consistently at 60. when it hits about 62 i change ice,but for a bit when ice is first put in the temp drops as low as 54. my question is,is it likely that much of a swing will cause any noticable off flavors? i have always brewed at a consistent 72 debrees or in my fridge at 50 degrees. no experience with temp shifting. any help wouild be appreciated. thanks!