One of the key things I learned in all the post doc stuff I did was that if procedures are simple, you will do them consistently even in a busy practice. This is my technique to easily do "anatomically correct" composite restorations. Here I'm replacing an old occlusal amalgam (1969!) that's beginning to show some cracks. I'm using Clean and Boost Dentin and Enamel Cleanser, Surpass Universal Adhesive, White Opaque Titan Flowable Composite and a Microfill shaped with Seamfree Wetting Resin.
For this occlusal composite, the bonding/finishing procedures took 5-7 minutes start to finish, and the end result is close to anatomically correct (after all this is restorative dentistry). Of course if you're restoring proximal surfaces this takes a lot more time. This technique makes it possible to produce very high quality restorations very efficiently and translates easily to more complex situations. This procedure can be made even more efficient by incorporating a low shrink composite, such as Exquisite Restoration, and a high power curing light. Hope this helps