The investment is quickly realized surcharge. This foot is firstly much larger than the 190, placing his face level head when it is fully deployed, but also can withstand a higher load: I use it without any problems with a 7D + 70- 200, a RZ67 (average size, quite heavy), and even a technical room: stability remains remarkable in all cases. Moreover carbon brings two advantages: the lightness of a hand, which is far from being a significant comfort when you trimballez your equipment on your back for kilometers, but also (especially?) A notable gain enough rigidity. This criterion is essential for anyone wanting to make real long exposures, and / or those who use a material that tends to emit vibrations (the rise of the mirror on a medium format can be quite significant). The carbon will absorb the vibrations that can come from both the material or soil, at least in part, ensuring a much mastered shooting. Properly deployed, this foot is a rock and I can not imagine an application that escapes him. Finally, the carbon heats nor cools as aluminum, and winter sessions are safely keep his hand stuck to a frozen tube ...
Only downside: no hook on the center column, for hanging a bag or other useful ballast; we will fall back on an attachment point on the tripod head, which can also do the trick (while going up the center of gravity of the whole, unfortunately).
Sum all, a foot that could well be the last one I buy, the manufacture quality portends many years of use.