Polar grid padding/margin

Hello,

I’m working with a polar chart and I’m having certain issues with the grid.

I’m trying to get a grid that covers all the surface, but I am not able to get it. I think it’s related to the Polar#Axis.

When I set a -200 margin on the Y axis, the grid lines separate and look like they are starting when I want, but they are not being draw outside the original circle.

When I set a -200 margin on the X axis, the outer circle goes outside the surface (red brush to watch it), but the Y axis does not reach the X axis and still inside the original circle.

Is there any way to get the desired grid?

I attach my code and a few images.

Thanks in advance.

                    <Grid Visibility="{Binding ShowPolarGrid, Converter={StaticResource BooleanToVisibilityConverter}}" >
                        <s:SciChartSurface Name="PolarGrid" 
                               MaxFrameRate="24"
                                  BorderBrush="Lime" BorderThickness="2">
                            <s:SciChartSurface.XAxis>
                                <s:PolarXAxis DrawMajorGridLines="True"
                                  DrawMinorGridLines="{Binding PolarMinorLines}" MinorsPerMajor="2"
                                  DrawMajorTicks="False" 
                                  DrawMinorTicks="False"
                                  AutoRange="Never"
                                  BorderBrush="Red"/>
                            </s:SciChartSurface.XAxis>

                            <s:SciChartSurface.YAxis>
                                <s:PolarYAxis DrawMajorGridLines="True"
                                  DrawMinorGridLines="{Binding PolarMinorLines}" MinorsPerMajor="2"
                                  DrawMajorTicks="False" 
                                  DrawMinorTicks="False" 
                                  VisibleRange="0, 1" 
                                  AutoRange="Never"
                                  MajorDelta="1" />
                            </s:SciChartSurface.YAxis>
                        </s:SciChartSurface>
                    </Grid>