My question is in regards to lie angle. 
I was recently fitted twice. Once off the grass and the other off the mats.  Each fitter gave me a completely different recommendation though. The first said I was two degree's upright and the second said I was two degrees flat. A lie board was not used either time. They said they look at the swing and the general shape of the shot to fit for upright/flat.
Why such a discrepancy?