Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Used this with ONE kayak?  If so, what was your experience regarding stability and cross-wind effect.  Any trouble with plastic tightner coming loose?
Document: I constantly worried about losing a kayak and killing someone whenever I transported my kayaks. No matter how many straps I used to secure them to my roof rack, they always seemed loose by the end of my typical thirty minute haul. Once one of my straps slipped off and the kayaks were close to falling. Part of the problem was the fact that one of my kayaks is only six feet long (the lifetime wave).
I just got this in the mail yesterday and used it today. Mind you it was -20 with the windchill with wind gusts between 10-20 mph. I picked up two 9.5 foot Kayaks and lashed them to the rack on top of my Jeep Patriot with factory crossbars (they are flat).
I hooked this system up to a pair of Malone cross bars for my '10 Forester. Unfortunately our first experience using this system was in the parking lot of the sporting goods store when we bought our kayaks. It was cold and it was difficult tying knots and figuring out how the straps go with numb hands. We were very apprehensive about the kayaks staying in place after getting up to speed, but they held tight.The second time we hooked them up we didn't even need the directions.
Don't worry about it. I put the foam supports on the cross bars, as instructed, and tossed one kayak up there. The cross bars bend down so much that I was worried about adding the other one. My Jeep is 11 years old so maybe they're better now. I then removed the foam supports from the crossbars and just put them on the roof of the car. On the inside of each of the cross bars.
The kayak sat just fine up there before being strapped down. Although it is easier to do it with help, I could easily get it up there to be strapped in by myself. The other one went up just fine as well. There is an extra strap included used to wrap the two boats together and I thought was a nice touch.
Very well made product. The parts can all easily be assembled without tools. The concept is pretty simple. The tie down post can be raised and lowered to use the nylon straps. All you have to do is attach the posts to the roof rack cross bar. When you're ready to transport the kayaks, raise and tighten down the post; run one strap through each post for each kayak and tighten. After you get the 4 straps tight, take the blue strap and tie the 2 kayaks together.
So my wife and I love to go Kayaking and we have always used our friends extra kayaks. Well we decided to get a couple of our own. I got a 12footer and my wife got a 10 foot, both SIS. I have a BMW 328i and I was waiting for the factory Kayak racks for my factory roof rack. The kayaks were on sale so I bought the Malone Rack to carry them home and I was going to return them after the new rack showed up.
Rack works as expected, was pretty stable with two kayaks at highways speeds. I switched out the straps for the Sea to Summit Solution tie down straps to better protect the kayak surface. I would recommend this rack to others as an easy to use, stable, yet cost effect system.
Sometimes on a windy day with highway speeds you can feel the kayaks battling through the wind, so I'll stop once or twice (when the kids have go!)
The &#34;teeth&#34; on some of the plastic parts that are critical to holding the carrier post in place are partially stripped.
Answer: yes