I have a slightly used 246 rotary broom in excellent condition on my F935. It works and operates awesome. My only concern and observation is that I am noticing that bristles are coming off here and there during use. I use the attachment by lowering it to the ground all the way and slightly adjusting upward to reduce wear while providing for an effective sweep. The 246 does not have caster wheels and store the unit on the insert stands when I am done to keep it off the ground. I would appreciate experiences from others including wear and operation. I use the broom on both grass and pavement.