The cart of the Dynamic Perception Slider sometimes doesn't provide enough room to hold all your gear like the MX2 or a battery. This is especially true when you use a large tripod head or a Merlin pan and tilt head. We at ElysiaVisuals have shipped velcro with our latest Stage One shipments, just to solve this issue. But now Dynamic Perception has announced the ultimate solution to free space on your Stage One slider; the "Cart Buddy Shelf for Dollies"
This is the "official" product description of Dynamic Perception: