I appreciate the info. I was actually just looking at Mu since I cloned that code for review recently. Since the framework I'll be doing this in is a testing suite, Mu may be the best model for me to follow.
Since I'm focused on UDP, Looking at comments in ac.scm in Arc, I realized MzScheme might hold the answer - there are plenty of UDP functions in those libraries.
Let me poke around a but and I'll shoot you an email if I have something to pass by you for opinion.