Modules & VBA :: Sizing ChartArea MSGraph Control

Using Access 2010 on Windows 8.1. I have a subform that has 18 small MSGraph objects on it. I am requerying each chart when the user selects different filter options. The charts are very simple (no legends, no titles, 3 columns on each, number format in %) the MSGraph controls are all the same height and width. I have am using a public sub to try to control some of the formatting eg font size and style for ticklabels and colour of the columns (which all seems to be working) but despite this consistency, the graphs all render different sizes failing to "Stretch" to fill the MSGraph control. The tickLabels are also different sizes despite turning Autoscaling off and setting a font size. I can't set the chartArea.Height or width. At this stage I would settle for them all to be the same size -

Code:
Public Sub GreatFormats(EBSArea As String, GrNumber As Integer, SFrmName As String, FrmName As String)
Dim GrphName As String
Dim GrpType As String 'Status or Priority Graph
Const twips As Long = 1440
Dim MySForm As Form
Set MySForm = Forms(FrmName).Controls(SFrmName).Form
For I = 1 To GrNumber

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