first Time tractor and flail mower owner here.
I remember as a kid when brushhogging, stay away as a rock could fly out of that like a bullet. I love my flail mower due to its compact size and cut quality vs rotary cutter. I just finished 45 hours of flail mowing my pastures, half of which we neglected for the past two years. 6’ of sticker/thorn bushes were literally no issue. I was surprised how well the snail cut.
small saplings, no issue either. The only thing it did like were two rocks/boulders that are embedded into the side of a hill that I didn’t know were there, other than that, all good.