I'm currently in Ch.4 on my Hard/Classic Blitzkrieg run. Alm is right before the Nuibaba fight (I already have the strat worked out, just resetting for level ups lol), and Celica is right before Dolth. Currently sitting at 258 turns in total. There were times I derped like not visiting Forest Village before Sylvan Shrine to get the Blessed Lance, so I had to backtrack, and I also did a teeny bit of grinding in the Fear Shrine to get Silque promoted.
I actually used the DLC Boots on Celica in Ch. 2, so it's probably part of some turns I saved.
Rundown so far: