I am thinking about putting together a simple German Pilsner but I don't have the setup for lagering. I was wondering if it would be better to use a clean ale yeast such as Kolsch or to just use a lager yeast and have it ferment on the high side (68-69F). I wouldn't mind a little bit of ester production, as long as the yeast won't crap out and stop fermenting. What do you think?