The spreadsheet is helpful (we have it) but the real issue is that we did ITR peicemeal as the Process developed. We need to do it all again consistently:

1. FWD percentage deduct.
2. DW adder.
3. 25% default rule (right now we have some cars at 35%, some at 30%, some at 25%, some at 15% and some at 10% and not a lot of data to back it up).

I know that last point will be the stickiest and no, we don't intend to make willy nilly changes (or many changes at all). And the good news is most cars are not far off process weight at all.