What is the Walker blade made out of, carbide? Reason why I ask is that zoysia is highly abrasive. The moment a blade is not razor sharp, it leaves frayed tips that turn white a few hours later. Is the Walker blade a low vacuum blade also, to reduce swirling. I know a local Polo field that uses a Walker mower to mow common bermuda. Grass does not look nearly as good as it could vs what even a non powered gang reel would do. Shredding of leaf tips, disruption of stolons trying to tack down and scalping/gouging anywhere the ground is not marble flat.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738