Baguette Cook Time

I use a Combi oven for my bread baking at my shop it does steam,combi and normal convection. My question is how long and what setting should I use for cooking my baguettes.I currently do Combi for 1 min at 370f to get some steam action then it goes to convection for 25 min at 340. I am trying to play around with the different timing and settings I wonder if I should do straight steam in the beginning for a different time and temp or change my cooking time and temperature completely. Input would be greatly appreciated . Thanks