Wizard/ Autogrid, bad mesh quality Statistics

Hey, 

I used autogrid and the wizard. I left everything as it is in case 1, only adjusted the flow paths number, cell width and the grid refinemt level ( to get finer meshes and to analyze the absolut total pressure loss ). If I left the control lines as they are, the max aspect ratio and span. ang. dev was very bad. Here I have an absolute total pressure loss over the blade of 2.67% for the roughest mesh (218.823 points). The finest mesh (2.681.907) is 2.55%.

Now  I've added 3 more control lines, the mesh has greatly improved. The roughest mesh (280.085 points) has an absolute total pressure loss over the blade of 2.68% and the finest mesh 2.49%.

All residuals are converged as are the mass flows. I don't really know which mesh to choose. I'm leaning towards the fitted mesh with multiple control lines because the mesh quality statistics are just way better. It makes sense, that the values of the absolut total pressure loss are very similar, since mainly the mesh is adapted downstream of the blade. 

the values are as they are because the channel was chosen to be very long, which is why 2 control lines are not enough if the max aspect ratio is to be controlled..