“The courts generally avoid varying interim orders on motions prior to trial unless the circumstances are urgent. Jarvis J., in Pakka v. Nygard 2004 CanLII 5071 (ON SC), stated as follows:
The variation of an interim order is a difficult area. Policy considerations dictate that such applications be discouraged. They increase the stress and uncertainty of the parties and vastly increase the cost of litigation. To echo the words of Wolder J. in Thompson v. Thompson, [1995] O.J. No. 2106 (Ct. J. (Prov. Div)), such an order sh ould be varied only wh ere the failure to v ary “ would cause the payor to suffer undue hardship or that a continuation of the existing order would be incongruous and absurd.”