I have been hunting with the QAD Ultra Rest for the past 3 years. Last fall I was hunting in cold weather and my rest would not drop or was very slow to drop. I guess it was a good thing not to have a shot on a deer that day. Went to my archery shop a couple of weeks later and the tech told me that that model of QAD Ultra Rest had been having problems with an internal part of the rest. Gave me the number of a rep at QAD. Called them and he told me he would have a new one shipped out next day. Three days later I received it and it was the new upgraded model. I then sen the old one back to company. Great customer service. Still would not have any other rest on my XT. They are geat. I like the fact I can have my bow upside down and the arrow will not fall off the bow.