I have a single wheel Jack Taylor trailer that I have used since my kids were infants. The wheel is suspended, but the hitch is different from the BOB. I used it with a tandem to carry my kids, one in the trailer, one in a kids seat, until they got too heavy to carry (kids plus trailer plus kid seat = 120 lbs). I then transitioned to a triple to let the kids pedal. The trailer worked fine. I liked the way the single wheel tracked pretty well with the bike wheels. My experience with flat bed two wheeled trailers is they make better cargo trailers than touring trailers, but it is entirely your choice.