'(1) Affidavit evidence should be confined to relevant facts and should not be prolix or diffuse. Each party should normally file one substantive affidavit dealing with the matters to which the court should have regard . . . If any further affidavit is necessary it should be confined to such matters as answering any serious allegation made by the other party, dealing with any serious issue raised or setting out any material change of circumstances. '(3) Wherever possible, valuations of properties should be obtained from a valuer jointly instructed by both parties. Where each party instructs a valuer then reports should be exchanged and the valuers should meet in an attempt to resolve any differences between them or otherwise to narrow the issues. '(4) While it may be necessary to obtain a broad assessment of the value of a shareholding in a private company it is inappropriate to undertake an expensive and meaningless exercise to achieve a precise valuation of a private company which will not be sold: see PvP (Financial Provision)[1989] 2 FLR 241 [there are numerous other authorities on this point]. '(6) Care should be taken in deciding what evidence, other than professional evidence, should be adduced and emotive issues which are not material to the case should be avoided. . . . '