One nice feature of software is the ability to compare different models for each beer you make. BeerTools Pro contains the Daniels, Morey and Noonan models, and it displays the expected results on your recipe.
By comparing a number of beers, I found that Noonan is predictive for my beers in the 10-20 SRM range (particularly in that crucial 14 SRM neighborhood when roasted malts are used for color), but tends to predict overly dark beer when I get somewhere above 25 SRM. The Daniels model works better in my brewery as I get in that black beer range.
Using the Color tool available in BeerTools Pro, I was able to customize the black end of Noonan's curve to resemble that of Daniels to make the program more accurately predict results in my brewery.