Thank you guys for the suggestions!
Crystal - I actually just moved to FL from North GA, and I always had stuck to the tried and true 484. Down here, however, it seems 323 is the number expected to be used based on the flat terrain (originally formally used/required by the St. Johns water...
I have been perplexed by this one. We are working on a project where there is varied topography. Much of the overland flow is on relatively flat slopes, but other portions of the same basin are on steeper terrain. We had a discussion about SCS shape factors, and whether it would be...