Out of interest, why do the transfer to the polypin?I generally use Nottingham ale yeast which is quite fast, high attenuating and high floculation. As a result my timetable is: 3 - 4 days in fermenter, and then transfer into a second air locked container for 5 - 10 days (I use a polypin sat on its base with an air lock in the hole where the tap would normally go. That way any air can be removed before sealing it). Bottled from the polypin so about 8 - 14 days from pitching yeast.