I just did a little gear test at home. I have a Paddleboy cart, much like the wheeleez, weighing in a 5 lb. and a Canadian boat walker weighing in at 12 lb. ( I have an older model with less steel at the middle.) The Paddleboy oilcanned my hull because it was too small, so I added some crossbars, but it still was too small. It's also 3 or 4 inches lower than the CBW and I found myself hunching over to keep the other end of the boat from dragging. I went back and swapped out for the CBW and noticed an immediate improvement in the ease of rolling. No contest, I'm taking the heavier one and the other one will be on the free table at the next Paddlers Gathering in Fairlee VT.