Just wanted to respond to the bolded portions real quick:
1) You can also lock in desired TPA/DPA/WPA on the sheet I'm maintaining. It's misleading to indicate otherwise.
2) You say reworked, but it really looks like you directly ripped off many of the formulas and fields.
I'm all for maintaining and sharing this tool for community usage, but I'm not a fan of having the work I put in being passed off as someone else's.