There are 2 things I've learned being in this hobby for 41 years. The first is you don't buy anything when it first comes out. You let it run at least a year before you buy and look for feedback. The 2nd thing is you do not buy from anyone that isn't local. This way when you have a problem like you are having you can go grab them around the throat. Even then there are no guarantees. It amazes me how many posts on RCU revolve around people getting ripped off for in some cases thousands of dollars. It's worth it to spend a couple of dollars more and get it from your local hobby shop.