This isn't a common exercise but it great variation to throw in as well as a great way to do inclines if you have shoulder problems. I have found that incline presses often hurt during the bottom portion of the lift. By attaching bands to the top of the rack (the lightened method) you will decrease the amount of weight at the bottom.
You can use strong or average bands to do this.
You can use this lift as a max effort or supplemental lift. For max effort work, this is working up to a 1-3RM. For supplemental work, 3-5 sets of 6-12 reps works well.