I'm not sure I understand your question. I've not done lagering, I'm aware, though, of the general difference between ale and pilsner malts... or I think I am anyway The pilsner malts are lighter colored so you can get those really light pilsners/lagers, whereas ale malts tend to be just a bit darker. I've heard people get close to lager quality by doing ale yeasts at low temps and then cold crash for a long time before drinking, this clarifies the beer and reduces chances of any stronger esters common in ales that lagers don't have. I say go for it. I also hope I'm not wrong on that... but that's what I understand anyway.