Well if it's both heads then scratch what I said before. You can hit both heads with one exercise with less additional recovery demands than doing both the adjunctive isolation movements I mentioned: Dumbell Overhead Presses Partials on a seat with a vertical back support, palms facing forward, arms directly to the sides of torso. Don't go below your ears for the sake of your rotator cuffs, and by staying away from lockout you can minimize the involvement of the tris and serratus which largely take over the last portion of the movement to lockout and therby use more weight to overload your delts.
Since you're doing the Push Presses at a high speed for low reps, do the following Dumbell Overhead Press Partials at a more moderate tempo for moderate reps.