Hi Wallace
I would say a thin blade is more important than the grind or blade shape.
My opinion stems from a blade I forged, was a bit think but full flat grind and razor sharp. The disappointment came when I tried to slice an apple.....
It might have done better with a tomato, or batoning wood if it was bigger, but a paring knife needs to be multi-veg compatible......and Victorinox is king!