As alerted through this thread:
The old proc rate was 5 per minute, the new rate should be 7 per minute. Some tests seem to validate this, others here do not.Link
We'll do some more testing to make sure that this is working correctly.
We don't intend to decrease the dps of SoC, we're trying to make SoC less of a gamble. In addition, the judgement damage is significanly higher and more controllable than it used to be (and still crits off of melee crit, not spell crit). The judgement change is intended to be a straight "buff" to JoC, and thus a buff to the SoC paladin's overall dps. We understand that judging more frequently implies a higher degree of mana usage to gain the additional dps from SoC/JoC, but this is something we'll continue to evaluate while 1.9 is in testing to see whether the costs are appropriate.