Well if you want to know it's actually.......

Beginners sphere grid - 859 nodes
Expert sphere grid - 805 nodes

To Skyblade - at the beginning of the game you get to choose between two types of sphere grid which you then keep for every character throughout the entire game.
When you start any new game you can choose between the two.

The beginner grid has a blue background, more nodes, and is best suited to levelling up you characters with the stats that best represent their fighting style at first.
The expert grid has a brown background, less nodes, but is suited to making you levelling more experimental.

The positions of certain magic and ability nodes are also changed on the differetn grids.