Bahia grass can grow a lot in two weeks and many mowers will require two passes to get the seed stubs down. I run 60” Hustler Super Zs both with Velocity decks(which I like better than the standard fab deck designs) and one with a mulch kit. Mulch kit leaves the prettier cut but the sneeze out the front will leave you covered in fine dust.
If I didn’t have these I’d be looking hard at the Scag Turf Tiger or the Kubota ZD line. But I don’t think the kubotas come with the velocity decks. Turf Tigers do.