Hi Tim / Team.
Have udated to the latest beta and the imprevements are great 
Only one problem when you now try to adjust your planned altitude in the enroute features window by dragging the line up or down you recieve this error window
I have pasted entire fault code
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.ArgumentException: TimeSpan does not accept floating point Not-a-Number values.
at System.TimeSpan.Interval(Double value, Int32 scale)
at Divelements.Aviation.Routing.FlightModelUtilities.ProcessIntermediateClimbOrDescent(List`1 entries, Int32 targetIndex, Boolean climb, IFlightModelDataSupply dataSupply, FlightPerformanceClimbProfile climbProfile, FlightPerformanceDescentProfile descentProfile)
at Divelements.Aviation.Routing.FlightModelUtilities.ProcessIntermediateClimbsAndDescents(List`1 entries, IFlightModelDataSupply dataSupply, FlightPerformanceClimbProfile climbProfile, FlightPerformanceDescentProfile descentProfile)
at Divelements.Aviation.Routing.FlightModelUtilities.RunFlightModel(RhumbLineLeg[] legs, IFlightModelDataSupply dataSupply, FlightPerformanceClimbProfile climbProfile, FlightPerformanceDescentProfile descentProfile)
at Divelements.Aviation.Routing.Journey.CreateModel()
at Divelements.Aviation.Routing.Journey.get_Model()
at Divelements.Aviation.Routing.PlannedRouteParameters..ctor(Journey journey, GeometryEntity[] airspace, Entity[] positionedEntities)
at Divelements.Aviation.FlightPlanner.Routing.x623a54d0e478ee0f.xa3c6ce19704d4032()
at Divelements.Aviation.FlightPlanner.Routing.x623a54d0e478ee0f.x2f58c73044db3fb6(Object xe0292b9ed559da7d, RouteChangeEventArgs xfbf34718e704c6bc)
at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
at Divelements.Aviation.Routing.Journey.OnRouteChanged(RouteChangeEventArgs e)
at Divelements.Aviation.Routing.Journey.OnGeographyChanged()
at Divelements.Aviation.Routing.RhumbLineLeg.GeographyChanged()
at Divelements.Aviation.Routing.RhumbLineLeg.set_Level(VerticalPosition value)
at Divelements.Aviation.FlightPlanner.Rendering.x2f1599f2099aaa05.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativewindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativewindow.WndProc(Message& m)
at System.Windows.Forms.Nativewindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3615 (GDR.050727-3600)
CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
SkyDemon
Assembly Version: 1.4.5.20583
Win32 Version:
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/SkyDemon.exe
----------------------------------------
Divelements.SandGrid
Assembly Version: 2.2.4.1
Win32 Version: 2.2.4.1
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/Divelements.SandGrid.DLL
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3614 (GDR.050727-3600)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
SandDock
Assembly Version: 3.0.6.1
Win32 Version: 3.0.6.1
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/SandDock.DLL
----------------------------------------
Divelements.Aviation
Assembly Version: 1.0.4024.20581
Win32 Version: 1.0.4024.20581
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/Divelements.Aviation.DLL
----------------------------------------
Divelements.Mapping
Assembly Version: 1.0.4024.20581
Win32 Version: 1.0.4024.20581
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/Divelements.Mapping.DLL
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3082 (QFE.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
SandBar
Assembly Version: 1.4.3.1
Win32 Version: 1.4.3.1
CodeBase: file:///C:/Program%20Files/Divelements%20Limited/SkyDemon/SandBar.DLL
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.