I don't believe the plow is binding, nothing there really to bind. Just a pipe in a pipe pivot. In the picture, the lines were too short, but I used it that way last season. Had to watch how far I tilted when the arms were high. They were 36" and 48" respectively. This season I added another 36" on each hose using the proper coupler and 1/4" hose from Mills Fleet. The added lengths gave me the full range of lift and tilt again, but the process slowed and took alot of power. I agree that there is a restriction somewhere, either the hose size itself or possibly a crimp too tight. The fittings are sized ok. I suppose when using a nomographic flow chart one has to know how much fluid you need to move in a specific amount of time before honing in on the proper line ID. Thanks