Try incline benching like this to build muscle, build strength, protect your joints, and put a little more explosiveness in your chest training.
Load up the bar for incline bench pressing. Then add chains that aren't completely off the ground at the start. This will lighten the load as you lower the bar. It also means that as your arms reach the top the load will get heavier.
In today's training world, most experts would agree that high intensity interval training (HIIT) performed after resistance training is the best way to get lean.
There's no such thing as isolation in training or in life. Everything you do, have done, and will do, affects everything else. Success is a synergistic – not additive – phenomenon.