Step 1: set up the bench, ensure the safety pin, and adjust the rack height
First and foremost, you have to have the right setup. You can decide to use a standard flat bench with built-in j-hooks or a power rack and free-standing flat bench, the hooks should be set to a height that allows your initial grip at the bar to keep a slight bend at your elbow. This is to allow racking and unracking.
It is best and most advisable to use an experienced spotter. If you don’t have a spotter, ensure you use equipment with safety pins. This is most needed with the reverse grip bench press, as the grip is naturally less secure compared to the traditional bench press. Set the safety pin to about the same height as your chest when you are completely flat on the bench.
The purpose of the safety pin is that, since you will have a slight arch in your back when performing each repetition, the pin height when placed properly will allow you to fully lower the bar on each rep but protect you from being crushed under the bar in the event of failed repetition i.e the lift falling off your hand.