“one must envisage an hypothetical counsel capable of conducting the particular case effectively but unable or unwilling to insist on the particularly high fee sometimes demanded by counsel of pre-eminent reputation. Then one must estimate what fee this hypothetical character would be content to take on the brief. (Simpson's Motor Sales(London) Ltd v Hendon Corporation[1965] 1 WLR 112 at 838C)” “one must envisage an hypothetical counsel capable of conducting the particular case effectively but unable or unwilling to insist on the particularly high fee sometimes demanded by counsel of pre-eminent reputation. Then one must estimate what fee this hypothetical character would be content to take on the brief. (Simpson's Motor Sales(London) Ltd v Hendon Corporation[1965] 1 WLR 112 at 838C)”