A couple of pointers if you're seriously considering a roo pad...
1) Provide multiple feeders and waterers so that the ones at the bottom of the pecking order do not get pushed away by the higher ranking ones resulting in starvation. I can and does happen. Keep an eye out lower ranking ones that are not eating/drinking enough.
2) When you go into the coop/run you absolutely have to be the head roo. If you are intimidated by roos, a roo pad is not for you. Do not walk around any of them. Make them move out of the way as you go about your business. Remember you have a whole flock of roos watching your reaction. If they see what they perceive as a weakness on your part, you may be challenged later by any one of them. If you are challenged you need to nip it in the bud right then. I have 19 16wk. old cockerels together and they get along fine except for the normal pecking order spats. They were hatched and raised together. The head cockerel decided to posture, growl, and stomp his feet while coming toward me this morning while I was holding and checking one of his flock mates. I didn't give him a chance to challenge me. I immediately gave him what I call a back handed flick in the breast. Not hard, but hard enough to make him squawk and immediately flee from me. I then walked behind him for a minute making him move out of my way. It's not being mean, you're just doing it in a language that they understand. Hopefully he learned his lesson at a young age, not to ever try it again. I only plan on keeping 6 of them for breeding and back-ups, but I'm waiting for them to mature a while longer.
Good Luck!