After Sean Corfield clued me in to the performance impact of things like DuckTyping instead of strict typing in low-level code (like frameworks), I made some large changes to the Model-Glue:Unity core in terms of arguments and returntypes.  

The result:  whoa, that's fast.

Here's a few benchmarks from a 100-concurrent-user load test:

<strong>Application Template</strong>

Model-Glue 1.1...<p>[<a href="http://www.firemoss.com/blog/index.cfm?mode=entry&entry=FB980E37-3048-55C9-43319854C6D8073D">Read more on Joe Rinehart's blog</a>]</p>