I would cut for hay rather than graze with cattle simply due to TB risk.
No TB in Scotland, and almost none in the far north of England, so good advice for those of us in the south or Wales, but may not be necessary for anyone a lot further north.
Ponies graze closer than sheep, so if poss, get some native ponies on and keep them on until it’s good and short. If it’s a small area, you may need to pick up their poo and rot it down for the garden, or spread it back on the land once they’re gone. (I pick any field up to 5-6 acres with two Fell ponies on it. They make approx 33 heaps a day between them
. If I didn’t pick up, there’d soon be no clear grass for them to eat!)