I use symbicort and have very good results with it. Do you use a spacer? Using a spacer gets the med deeper into your lungs instead of staying in your throat or back of tongue. I also have pulmicort which is an inhaled powder and I never feel like I am truly inhaling it deeply. I am glad the symbicort works for you. It has been a lifesaver for me.
I also use a spacer with my symbicort and my dr. says it gets more med into your lungs directly. He also told me to wait 5 min in between each puff. The reason for this is the 1st puff gets a chance to start to open your lungs. Then when you are more open use the 2nd puff and you will have very free clear breathing. This has worked great for me. In fact he told me to use all inhalations 5 min apart even my rescue inhaler and this has really helped a lot. Also, remember to rinse your mouth out with water after using any inhaler so you don't get thrush or sores in your mouth.