Need some ideas....

to spice up your current routine.....get rid of the one count movement. Instead of one count up one count down.....try 2 counts up 2 counts down. This slooooows down the movement and makes your muscles work differently...and harder.....

something even harder....

2 counts up 4 counts down.

This can work with any exercise and on any piece of equipment. Squats, biceps curls, lat pull down machine....you name it...it works!

Lift for 2, lower for 4!

Let me know how it goes.