The Shoulder Saver pad makes the lift similar to board pressing, but it's a lot easier to execute if you train alone, without a training partner.
The pad reduces the range of motion and the amount of stress placed on your shoulders. It can be an extremely valuable tool for continued bench-pressing, without pain. The bottom portion in the bench press is the most stressful position for the shoulders. By placing a Shoulder Saver pad on the bar, you'll never reach this critical range in the lift.
Pressing from a reduced range of motion in a power rack (pin-press) is a similar variation you can use to reduce the range of motion. But the dead stop with "metal on metal" is more aggressive on the joints. I recommend the pad (and pressing from a board) over the pin-press variations.