2. Where–
(a)a transfer value is payable to an approved superannuation scheme which is not a club scheme; and
(b)it falls to be calculated by reference to service rendered by the teacher before 21st October 1988,
the transfer value payable shall be the total of A and the greater of B or C, where–
A is a transfer value calculated in accordance with paragraph 1 in respect of the teacher’s reckonable service after 20th October 1988,
B is a transfer value calculated in accordance with paragraph 1 in respect of the teacher’s reckonable service before 21st October 1988, and
C is a transfer value, calculated as if Schedule 10 to the 1977 Regulations, as in force on 5th April 1988, had continued in force, in respect of his service before 21st October 1988.