Take a look at 95% of the people in your gym who are trying to put on muscle while they bench press. Technique aside, just about all of them are just pushing the weight. Most have no mind/muscle connection going on with that exercise. Or very little. These same people have no problem getting that connection with say, a bicep curl where they hold the squeeze even for a micro-second. But not the chest while bench pressing. You see it with people who squat also. Hardly squeezing their quads/glutes(no homo) ect and just trying to push the weight. So the question is, can you build big pecs with just heavy weight alone with next to no feel of the chest while doing the exercise?