I used to do the "wet t-shirt and fan" process for summer basement lagers with WY2124 and they turned out well, even though I doubt if the actual fermentation temperature got below 60F. I'd expect 34/70 to have similar performance. Have done a number of Lutra "lagers" as well, and enjoyed them. Probably more in the blonde ale category, but I like good blondes. I used Lutra thinking that it would speed the process, but it took quite awhile to clear and condition so don't think that I saved all that much time.