Between 16 to 20mm depending on the season Keriboi
Do you cut around bunkers with the rotary decks? From what I have seen with rotary they leave steps on slopes and we still get scalping even with the big improvements in rotary mowers these last few years.
Keriboi is spot on i have used jacobsen, john deere and toro surround mowers.The toro sidewinder is without doubt the best and with the rotary deck, far less maintenance, no backlapping, no replacing roller bearings all the time, will still stripe up if you want to, its a no brainer.
It cuts our NZ Kikuyu fine. Probally better than the reel.
Get toro to drop both versions at your club and trial both of them and get john deere to drop one off as well. If you are going to spend that much money on a machine you need to give it a good test drive now while summer grasses are growing