I just recently did this with a Rye Pilsner. I used 3470 dry yeast to avoid having to make a large starter. I actually started around 52 but still had fermentation below the temps for the % of attenuation as Tasty did. While the beer could certainly improve, most if not all the deficiencies come from recipe/mash issues. I'll mash a bit higher and lower my bittering a touch next time. I went from 1.055 to 1.008 and had the beer kegged within 14 days. Gelatin had the beer clear(not brilliantly though) 2 days after kegging.
Great technique Tasty and I hope someone can find the name of the brewery that tipped you off to it initially. For someone like me who has only one temp controlled fermenter, this is full of win.
Question- Have you repitched lager yeast after doing this? If not, any reason you would/wouldn't?