Just to add some additional Bahia perspectives in addition to my previous post. I have a 65HP diesel tractor that I pull a 10' rotary mower(shredder, bushhog etc.) and when the Bahia is green and thick it will bring that tractor to a halt unless the mower is raised to the max and then you have to really slow down. A neighbor has a 100HP John Deere with a 15' batwing and he has the same experience. Another friend has 140HP John Deere with a 20' batwing and ditto.
I pulled a rear discharge finishing mower behind an old 35HP Ford tractor which worked really well. Got the idea from a rural golf course (all Bahia grass) that mowed with a pull behind finishing mower on a tractor.
I cannot mow every week and the Bahia is usually 6-18" on my mowers. With the larger tractors, maybe 2-3 times a year.
There is a local golf course that has planted Bahai in the rough that I plan to visit and find out what they are using to cut it. Will report back.