(1) This rules applies if, on an assessment of costs payable out of a fund, the amount of professional charges and disbursements is reduced by more than 15%.
(2) Unless the costs assessor decides otherwise—(a) the party with the benefit of the costs order must pay the costs of the assessment; and(b) the costs payable under the costs order do not include the costs of preparing the costs statement or attending the costs assessment.
(3) Subrule (2) applies subject to rules 733 , 734 and 736 .