Yes two blade on our Cav 30 (which is exactly the same as the 28 but with a sugar scoop glued on the back).
Ours is matched to a newer 18hp WM Diesel (a Kubota).
Goes nicely, No complaints apart from general vibration.
Pic enclosed. Does it look like this?
Even at the end of last season with it looking fairly crusty it seemed to work fine.
Ed.
