Threshold Error: Minimum Energy Performance Calculator v2009

Our LEED-NC v2009 project (which has the v06 EAp2/EAc1 LEED Credit Form) is attempting to utilize the new required excel calculator and following Option 1 (http://www.usgbc.org/resources/minimum-energy-performance-calculator-v2009 ---- Published on 07-Jan-2016). However, it appears to us that the calculator is not calculating the credit thresholds properly for the v2009 systems. When we put the project in as 100% new construction, the minimum threshold for EAp2 on the Summary Tab is listed as 5% rather than 10%. While not an issue for that easy example as you can extrapolate by doubling the number, it appears to be a much bigger issue for our project which is a mix of new + renovation... As an example: If you look at the background calculation [ (5 x % New) + (3 x % Reno) = (Min % for EAp2) ] and were to adjust those numbers to the correct minimums (10 New /// 5 Reno), you can sometimes end up with very different numbers. A 72% New + 28% Reno building in the calculator is showing a minimum reduction of 4% (4.44% calculated by hand). If you followed the logic of doubling the Summary Tab values, that would lead you to an 8% minimum for EAp2. However, changing the percentages in the calculation shows that the project needs a 9% reduction minimum for EAp2 (8.76% calculated). Marcus, do you know if this is a known error/issue that USGBC is working on? Any idea how reviewers will be handling this current calculation issue/how they will be assessing point thresholds for mixed New/Reno projects? If it is a known issue, have you heard anything as to when a fix might come out now that this calculator is required for v2009 projects using v06 forms? Finally, is there any guidance on how project teams should complete the v06 EAc1 Form in this case (since the point thresholds on the form will not update based on the breakdown of new vs. reno)? I am assuming that we should put in our actual percentage improvement in the form itself, fill out the special circumstances section with a note regarding the breakdown between new + reno and point-threshold adjustment, and then in the Threshold section we should select the threshold based on the points the calculator indicates that we should achieve NOT based on what the actual threshold is (i.e. if the calculator indicates we should get 7 points, we should pick the 20% New / 16% Reno option even if our percentage is lower than that). Thank you!