Checking the lines. I was asking the guys lots of questions - about the weight of the packs, wind direction, what landings are like, how long they can stay afloat, steering difficulty, etc., and this one suggested I try jumping with them in tandem. They all offer tandem jumps in the mornings when the Westward breeze is practically guaranteed. I did that the next day, but since I would be taking a tram up a mountain and jumping off it strapped onto someone, I didn't bring my pack or camera. With my luck, I would have done something clutzy with my new camera.