I brewed a Maibock (wyeast munich lager), and after it had reached 90% I gave it a short d-rest. it has been lagering at 39 for almost 5 weeks. I took a sample today and there is a major diactyl flavor. I think my d-rest may not have been long enough (1 day at 70). I was thinking of raising the temp to 50-55 and letting it sit for another week or so. I suppose I could always get some more yeast and repitch. what do you guys think?