A Contract was awarded under NEC3 Option B in Dec 2019 with an Access Date in Feb 2020 (approx £1M value).
Construction is continuing, though it is being affected by the need to social distance, because usual suppliers are not open/operating at reduced capacity, third parties are unavailable etc.
An increasing number of early warnings are being notified in accordance with Clause 16.1, many of which will be CEs under Secondary Option X2.
The Contractor has suggested that the main Option could be changed from B to E in order to reduce the administrative burden.
I have not worked with Option E before, but wonder if:
a. changing main Option part-way through a contract is possible and/or advisable?
b. this would make much difference as he would still be entitled to CEs and, under Clause 63.15, these would be assessed using the SSCC?
Would you advise this as a credible approach to the problem?