Quote Originally Posted by Whacker
I am actually rethinking this a bit. The way CA described it, it wasn't exactly linked to single or double clicking, someone else said that (positive it was a CA person) but I don't remember who it was. Here's the actual text from the blog post:

The triggers for a formed (powerful) charge include:
  • Line up the cavalry parallel to the target
  • Utilize a long straight run up toward the target
  • Prioritize stationary targets as moving targets may result in a last second turn and reform
The triggers for an unformed (weak) charge include:
  • The unit is spread out just before charging
  • The charge is issued while too close to the target
  • The charge is issued when the unit isn't facing the target
  • The player changes direction just before the charge• The target moves and turns just before being hit
At this point I'm not sure that the single vs. double click is valid anymore, it appears that it might now just adhere to the above rules is all that's needed. If you can keep your cav in formation while running (which is damn hard to do) and single or double click, you'll get a "powerful" charge.
I think we had this discussion in another thread about that same quote, and I have rethought the whole thing, too, based upon what the one psoter said (I forget his name).

I think it's just a function of the factors all being right. I think people may have had more success single clicking rather than double because it probably keeps unit cohesion better and allows the unit to reorganize when the enemy moves, etc.

The more I played it, I did see a few times where I double clicked and got a good charge off. I think that, from my experience, there is just a much better chance of all of the factors being in your favor if you single click...