This weekend I discovered the bane of my existence, the chariot cougar2 bike trailer/jogger. Having owned this for about four years now but really only use it for runabout errands here in town I never got to know it's real ability to be a thorn in my already aching ass. It is realistically a lightweight trailer but my daughter, who cannot ride a bike since she is two, is not a featherweight. So I found myself somewhere between tomah and mauston pedaling for 20 frigging miles with this behind me acting as an anchor. I have pieces and parts that I didn't think could hurt writhing in pain.
In short, if you are ever gven the opportunity to tow one of these with a bike over any, especially hilly, terrain you need to decline.