The Sling Shot doesn't change the mechanics of a raw bench. It helps train you to stay tight through the WHOLE range of motion...something that board presses, etc., can't do. Plus it trains you to handle heavier weights because you can overload. There are plenty of competitive raw benchers who are training with the Sling Shot now. The biggest modification is that raw benchers need to do more paused reps with the Sling Shot, to overcome any tendency to bounce.