You should think about simplifying your recipe if your trying to produce a true Utopia clone. If your actually crazy enough to brew it again. A lot of the flavour development is created during the long boil so specialty malts are really not needed, especially the Melanoidin. The maple flavour and smokiness you detect in Utopia's is from the barrel aging, and oxidation reactions. All you need is American 2 row Pale malt, crystal 60. (British) and Munich malt, and maybe a roasted malt. Late addition hops are kind of pointless. As soon as I get my new system up an running, and acquire a fresh dumped 15 gallon barrel from local distillery, I'm going to give this a try.