Well, now that you have a good lager yeast cake in there you could re-do the fermentation the proper way, this time. Brew the exact same grain bill, throw it onto that yeast cake, ferment lower, then compare the two beers.
A neat exercise in diacetyl and acetaldehyde, I think.
Primary: Stone Vertical Epic 08.08.08
Secondary: Oaked Arrogant Bastard
Conditioning: Dead Guy Ale clone, Double-Dubbel
Drinking: Not for a while