How to increase your vertical jump

I know we discussed the French Contrast and how it fits into my current program earlier this week.
But I really feel the need to share the workout again as I've now added TWO INCHES to my vertical jump in two weeks.
I'm really impressed at how much of a difference this has made and how quickly I'm noticing gains.

If you want to give it a try yourself, here's a video tutorial I uploaded this evening:

Let me know how you all get on...

Brad Wendes 110kg barbell squat