Hi, I finally got one and it is fantastic. Great for my travel style - one daypack internationals. Question. You can take the centre column out and on top you reverse the screw. When you do that the ballhead does not fit anymore, the screw is now smaller - which you can mount it directly onto the camera. This does not provide a lot of movement - camera fixed to tripod legs. Can you get ballheads that takes the smaller screw or a screw adaptor? Cheers.