I understand pain/gain objection under NEC4 Option C. Hence 11.2 (32) makes sense, and the prices in the AS are not used to determine the PWDD. The total of Prices is used as a target in determining the final Contractors share (pain/gain).
However in relation to interim payments, the contractor will make the request of actual costs in relation to the defined costs and fees (use of SCC and what’s stated in Contract Data P2). But what does 11.2 (31) mean then? I’m not sure what the Project Manager is to forecast?
I thought the contractor submits the intermin payment application, and the PM completes assessment and can disallow certain costs if applicable? I have more experience with Option A for interim payments, but I’m still a bit at bay with Option C.