Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Will this device work with the Barnett Penetrator?
Document: I am a big game outfitter . I hurt my back on an elk hunt , had several back operations leaving my upper body weak . I am going to hunt with a crossbow . Bought the Barnett Predator . Assembly was very easy . I had never used a crossbow and had no idea how to use the cocking string , a guide of mine showed me how to use it ,  due to my lack of upper body strength I had no choice but to use the Barnett cocking device . Installing the unit was simple .
My string on the crank broke after pulling the bow string back only about 2 inches. Not only that I had to pull the bow string back about 2 inches to be able to latch the crank string onto it. Barnett replaced the crank string very quick. It now works but is clumsy to use.
UPON TURNING THE CRANK 4-5 TURNS , THE COCKING STRING BROKE SENDING THE METAL PULLYS AND U ATTACHMENT FLYING  No one was hurt ! This was very dangerous . I called the dealer where I purchased my outfit and he is sending a replacement .Barnett needs to correct the problems .
I was a little worried about ease of installing this device. It was very simple, and it works as very well. Thank you for your follow up. Julius Schroeder.
If you're a ground hunter you probably wouldn't need this product if you have an adequate blind or cover that would allow you to use the rope cocking device and at the same time conceal your movement. I hope this review was helpful. Happy Hunting!
Installation of the device was not too difficult but the holes of the metal bracket that held the crank did not match up with the holes in the buttstock. After installation, took two cranks of the device and the strings exploded. Lucky it did not break closer to the catch or I would have had a nasty dry fire. Concept of the device is good; the strings are the weak point.
This cocking device works very well for the sole purpose it was intended for, and that is cocking the string in a effortless manner. DO NOT USE THIS TO: un-cock your crossbow. This device was not intended or manufactured to perform that function!! This device works great when cocking your crossbow in a climbing or lock on tree stand or a blind where space is limited as well as movement.
It should be attached as the manufacture describes but I find that the cocking device snags my clothing when I draw up my crossbow to aim and shoot. The crossbow is functional with the cocking device mounted securely to the dove tail bracket but you might find yourself having to draw your crossbow up and away from your body before resting it on your shoulder. I believe this is worth mentioning if you are considering buying this product.
installed on different crossbow and really works good as I could no cock crossboe
great product, pay close attention to the configuration of the rope. if this is not set up correctly you could damage the rope.
Answer: yes