Well you get some points left after you've hit Crusader Strike, so from there it's up to oyur own to deside.=)
Well the combat situation would be like this.
A melee class hits you and Reckoning procs, you hit him with an ordernary melee swing and get an other swing from reckoning, then you use Crusader Strike, and from that one you get extra hit again from Reckoning. Lets count, if you have some deacent gear you might critt above maybe 3-5k on lvl 80, even moore if you have your Avenging Warth on. So lets say that you critt first 4k,5k then maybe 5k, 5k. To me that's quite the burst dmg, and just imagine if you have WF-totem to.
IT has been proven that any weapon with a swing timer GREATER then 2.0 actually gets 8 seconds of double DPS, while any weapon with a swing time under that only receives 4*swing timer in DPS gain each proc.
This is because since Reckoning can proc on any random time in between swings, you can win as much from the first swing (which was already swinging before Reckoning procced) as you can losing from the end.
The only reason you want a faster weapon with Reckoning is because;
* More seal & judgement procs
* Reckoning being refreshed while AoE tanking
* There are no slow 1H weapons with spellpower on them.
This might be the most retard spec that I have ever seen. You know unless your trying to half ass tank and half ass dps. No divine storm and no righteous vengeance. This wouldn't be raid viable or solo viable.