Ways to make it easier:
- Decreasing the Range of Motion - partial reps, only go as far as you can handle
- Using external force for support - a partner or spotter
- Decreasing the Weight
Ways to make it harder:
- Playing with the Tempo & adding an Isometric phase (pause/hold)
- Increasing the Weight
Modification:
- To target the Lats - do it on a declined position, the steeper decline the better the resistance. Instead of overhead, arms starts just around 90 degree then pull your elbow to your lats and repeat.
Anywhere past around 90 degrees, works the chest more regardless of the lats' stretch. So if you find the setup complicated and/or have other options to work your lats, do those instead.