Mower deck insert

A mower comprising:

• at least one cutting blade operable to rotate about a vertical axis;
• a mower deck;
• and
• a mower deck insert coupled to the mower deck, the mower deck insert comprising:
• at least one cutting chamber comprising an axial scroll helically extending about the vertical axis, the axial scroll comprising an upper surface having a start region and an end region,
• wherein the start region is vertically lower than the end region.

A mower comprising:

• a mower deck;
• a first cutting blade operable to rotate about a first vertical axis;
• a second cutting blade operable to rotate about a second vertical axis;
• and
• a mower deck insert coupled to the mower deck, the mower deck insert comprising:
• a first cutting chamber comprising a first axial scroll helically extending about the first vertical axis, the first axial scroll comprising a first upper surface having a first start region and a first end region;
• and
• a second cutting chamber comprising a second axial scroll helically extending about the second vertical axis, the second axial scroll comprising a second upper surface having a second start region and a second end region,
• wherein the first end region is approximately 240° about the first vertical axis from the first start region.