I find most of my mid gravity lagers are ready for the Diacetyl Rest after about 10 days fermrnting at 50. Take you hydro reading ans see where you are at if around 1.020 it is time to start warming it up if you want to do this step.
On tap: World wide lager, Dopelbock, Apfelwein, American Wheat, DFH 90, Dortmunder export, Skeeterpee, Chinook/Citra ipa.
Waiting on a tap. Maibock, Two Hearted, Pliny the elder, Chimay White, Roggenbrier, DFH60
Hiding in dark corner: Lambic, Flanders red, Oud Bruin, DFH 120(in bottles)