Harold Ansorge: Systematic Practice the Bent Press – 21 Pointers 
In practicing the bent press, I would recommend that you start at a low poundage and work up to near your limit: Each time you lift, think of only one pointer and do that correctly. Forget about all the other ones. This will make it so you will be able to perform this one pointer without thinking of it. Then, take another one, etc.
I am listing a number of pointers that you should master before you consider your style correct: