Paragraph 3 F1

the transitional SDP element or, as the case may be, the transitional SDP amount, is to be increased by the additional amount specified in paragraph 5; and

if the transitional SDP element or, as the case may be, the transitional SDP amount, has been reduced to nil by virtue of regulation 55, the additional amount is to be treated as if it were the initial amount of a transitional element calculated under regulation 55(1).