Partitioning

[PVsystUser]

PVsyst V6.2.16

I have a 2P project, half cell with 28 modules in series (string length). I can define partitioning in 3 different ways but the results of shading animation is not the same and also the iso diagram is not the same. I included the screen shots below for all there methods. Please advise on which method is the best method to use for partitioning.