Sorry gang, but I'm going to make another Frankenstein out of this post...
I have a 5 gal pilsener stuck at 1.020 after 3 wks. OG = 1.056, 1L starter of WLP802 Czech Budejovice, fermented at 52F. 1 wk ago fermentation was slowing, and I raised the temperature to 62F for a diacetyl rest. 3 days...