Crackley crust achieved! (Baguette surprise, continued)
I made another batch of the baguettes described previously in http://www.thefreshloaf.com/node/11925/baguette-surprise-and-challenge.
The only significant changes in the procedure were:1) I did not add the salt until after a 50 minute autolyse, 2) I was more meticulous in gently pre-shaping and shaping and 3) I let the loaves proof more fully. 4) I also poured about twice as much water over the pre-heated lava rocks to steam the oven.