NEC ECC: Option B - pricing compensation event for similar work

Under an Option B contract. When a Contractor is pricing a Compensation Event I believe they always use Defined Costs plus fee percentage (unless otherwise agreed between PM and C, clause 63.13)? Is this correct even if there are items in the BoQ for identical or similar work?

Yes, it is. This is because even thought the work might be identical, the rates don’t take into account the delay and sometimes disruption cost.

Alternatively, the game used to be to spot the quantities that would go and load them up.

So the default is DC + Fee, unless the PM and Contractor agree otherwise. Do note that it says ‘as a basis’ (I think from memory)