Pullovers should be part of any chest routine. Use them as one of the last exercises of the workout after other muscles are already fatigued.
Finish your next chest workout with dumbbell pullovers: 3-4 sets of 12-15 reps. Focus on squeezing the pecs to initiate the movement up from the bottom position and work on holding the squeeze throughout the rep.
How many reps can you do for two alternating exercises in 15 minutes? This is just a taste of how escalating density training works. It’s a brutal, but fun way to build muscle and improve conditioning.