I have the same gitzo tripod on my DM4
http://photovideo.com.au/gitzo-gt553...od-p-8449.html
Its very light and is easy to walk outside one handed (mount tripod combined), my mewlon 180 loaded is probably 8 kgs + its a little tippy on the first leg angle , I guess theres your trade off right there on the light weight ,second leg angle is rock solid ( quite a bit wider ) I view seated and I believe this set up would load up quite a bit more weight wise ,dampening time is a second or so .If you havn't seen one of these tripods they are very solid nothing like the large manfrottos you see in the camera stores