I own a fair amount of m43 gear (2 GH4's, the f/2.8 zooms, 7-14 f/4, 15, 25, 42.5 primes), and am looking for a heavier tripod. I currently own a Sirui T-005X (link), but am looking for a tripod that will give me a little more height and stability. Currently, with the T-005X I can get a max height of 49" without extending the center column, and 58" when I extend the center column. The two tripods I'm looking at are the Sirui N-1004X and N-2004X with a K-20X ball head. The N-1004X gives me a height of 52"/63", and the N-2004X gives me a height of 55"/65". I'm wondering if anybody has any experience with either of the two tripods I'm looking at getting? Also, It seems like the extra 5"-8" of height really isn't a whole lot when going from what I currently have to what I'm looking at, but I'm guessing the two tripods would have better stability at their max height than the one I currently have. Would it be a worth upgrade to the N-1004X/2004X from what I currently have if I'm looking for a bit more height and stability?