This guide is now obsolete. I have published a new and updated version of the guide on WoWHead in preparation for the release of WoW Classic.
https://classic.wowhead.com/guides/lights-bulwark-protection-paladin-tankingThe guide is a 100% overhaul of the old one and basically redone from scratch.
I took into consideration that private server and retail server mechanics will be different, so I did all the theory crafting based on WoWHead Classic database data and old Vanilla footage. For analyzing the viability of tanking raid bosses, I read old retail Vanilla guides and watched videos from retail Vanilla to maintain the highest possible level of accuracy.