A single blade deck will cut 30" always regardless of weather it is going frontwards, backwards or sideways
A twin blade deck will only cut 30" when going strait ahead
Whe a single blade deck wears, it will cut say 28" wide
When a twin blade deck wears it will cut 2 x 14" wide strips leaving !' uncut stripe down the middle which means you will have to cut every inch of our yard twice
