Luis,
Why don't you have a look at the description and formula given in "The Wood-Fired Bread Cookbook" on the main FB site. If you're having problems, send me an email describing them, and we can go from there.
Baguette, on the face of it, is a simple formula, but it can be difficult to get just right. I spend most of my time on the dough and relatively little on shaping. I suspect people get into trouble because they over-handle the dough, looking for that perfect long torpedo shape. Fact is, many of those "perfect" loaves are machine extruded and loaded by conveyor, not hand shaped at all. That's why the slashing is so even. Look at the bottom of such a loaf; you can see the marks from the conveyor belt. Sad to say, these machines are almost all made in, wait for it, France

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Jim