I recorded most of my installation of the center ramp protectors from cliffy.
Yes there is a few cringe worthy moments,but hey that's pinball.
Maybe it can help anybody thinking about adding cliffys.
It's an 8 minute video I tried to show the most important steps.
Hope this helps someone someday.
The cliffys can be found here:
http://www.passionforpinball.com
https://m.youtube.com/watch?feature=em-upload_owner&v=uQwbiKX-Xlw