If I understand correctly
Arithmetic = trading pair price / number of grids for every grid
Total investment / number of grids for every grid
Am I right ?
Arithmetic/Geometric lets you decide the Grid Spacing.
Do you want to always have the same price difference between your orders, or do you want to have the same Percentage between every order?
Arithmetic (=Old/Normal): 100-130-160-190-….
Space between orders = 30
Space between orders = 10%
You use the one you want as you consider
I prefer Geometric in the long term