Ok. I get it's not perfect, I just want to know if I figured it right.
I have a tally of the parcels in the section I donated. Through the tally numbers, I can get a basic percentage the section contributes to the whole. Through that percentage I figured how many off my 4241 are from that particular section. I think I actually might be ok. I also donated a less valuable section. The heavy hitter section combine with the less heavy section might balance out.
Maybe we should consider doing current parcel survey in potential donor areas so carriers can get a grasp on what they current deliver vs how the interim Worksheet adjusts.

just a thought. Since CWE isn't a thing.