Well, I belive you didn't got replies because it's not very clear. When you mean ''control'', are you lucid ? As you may know, control is different from lucidity, you can be lucid but with no control.

What exactly are the problems ? You said inconsistency on the control, I belive it's normal. You need to train yourself to manipulate the dream correctly. Try reading some tutorials about dream control, and keep practicing and you'll find the best that suits for you.
Dream control is about belief. If you belive you can fly through a wall, you will. The limits are only imposed by yourself.