Every retirement allowance payable to a male person, or to the beneficiary of a male person, retired prior to July 1, 1977, as a member under the provisions of Sections 8.507, 8.509, 8.544 or 8.568 and subject to an optional modification pursuant to an election exercised under Section 16.75 of the San Francisco Administrative Code is hereby increased for time commencing January 1, 1978, to the amount it would have been if such allowance had been computed, on the date such allowance was first effective, on the basis of the mortality tables applicable to the Retirement System on January 1, 1978.
This section does not give any person retired under the provisions of Sections 8.507, 8.509, 8.544 or 8.568, or such person's successors in interest, any claim against the City and County for any increase in any retirement allowance paid or payable for time prior to January 1, 1978.
Any adjustment of retirement allowances made pursuant to the provisions of Section 8.526 of this Charter for time after June 30, 1978, shall be based upon the amount of the original retirement allowance plus the amount of the increase to be applied by the provisions of this section.