Its been a while since my last post. Here is an update on our power pro saga. They all began to creek and vibrate violently when elevated and lowerd. I contacted stryker and told them what was going on. They dispatched a repair guy and he serviced the cots. The problems stopped for about a week and then started again. I contacted stryker again and they sent the same guy back. This time he replaced the tubes inside the frames. Problem fixed again for about 2-3 weeks. I had been initially told by the stryker rep that it must be a training issue. Excuses excuses. Days later I was on a call with a medium sized patient on the cot in the lowerd position and the damned thing refused to go up. We had to use manual mode. The problem with this is that we were alone in the county and had no assistance from fire. It was a bit heavy. This same day it was also reported to me that all the other cots were creeking and vibrating yet again. I contacted stryker again and made them aware of the situation. They told me that we did the right thing by using manual mode. To that I replied, "For $9,000.00 I shouldnt have too." They were hesitant but did warranty all faulty stretchers. They overnighted them to us and we got the others off the street. The new batch are completely different than the old ones, they actually work. Maybe our first batch were built on a friday at 5pm or something. Though the cots sucked, the customer service at stryker was pretty good and when pushed, they did make everything right.