This is my first official batch of the brewers best American cream ale. The directions say after 5-7 days of fermentation to rack to secondary BEFORE fermentation is complete...is this correct? I don't have co2 or any means of helping it in the secondary if I wait out the 2 weeks in the primary. Also it says to take hydrometer tests every couple days until I. Get the same reading 3 days in a row....is it safe to pop open the primary's lid to draw a sample? Wouldn't that allow oxygen into it? Need some help here guys, thanks.