Hi Crillo,The solid roller is good in straight line cutting e.g bowls green where the front roller is lifted slightly during turns.The split front roller makes it a little easier going around obstacles when you want to continue cutting e.g trees.The third roller is called a ripple roller and is generally used on golf greens and it's primary function is to allow turf to not be rolled down by the front roller prior to cutting giving a more efficient cut.This roller is not great for curved cutting as it can cause tearing in a low cut situation.Golf courses will often skip the clean up cut around the perimeter of green if using this roller particulary on small greens or tight turns.
