cheers guys,
tried it on laminate floor just now and could do it with 2 fingers, did it on carpet albeit briefly as carpet is dry, and it just flew off again.
just one last question, i think i may have a 17" brush on a 20" rotary, the brush isnt overlapping at the sides, i was sold it as a 17" but now having my doubts =S
with no drive plate on the diameter is 18" across, have i made a booby?