Hi all i am not using any resricters and the screws on my valve are way out so i just do not know what to try next,i have never had this problem before but i will get it right.I had two more flight,s today the british weather is perfect at the moment for flying its too nice to go to work,i can not down load video so i will take another with a different camera that i know i can down load.ihope some body else is close to flying soon i want to see if it is just me who is getting prob,s or if it is a common prob,regards Keith