The front raise is not often used by lifters because of all of the attention to the front of the delts from all of the heavy pressing. But still, the front raise is a great way to work this muscle while not putting the excessive strain on the joint that pressing usually does.
The only thing that you have to worry about is your positioning; making sure that that cable doesn't run too high up in your nether regions.
This is usually done for higher reps and is done towards the end of the workout. Belt is not required, though.
