Can anyone recommend a commercial kayak cart? Mainly I would use it for portages (i.e. a loaded boat on trails) so it needs to be pretty sturdy. There seems to be a lot of comment about the inadequacies of most commercial carts for this purpose, but surely there is something out there that is reliable. I am hoping to have one that can be broken down and stowed, so the bicycle wheel variety is too big Has anyone tried the C-TUG? I am wondering how it compares to the other more common types (aluminum framed).