When I bake baguettes, they are coming out too dark on the bottom, too light on top.  I have a baking stone in the floor of my oven (GE Profile gas) and I place the loaves in the perforated baguette trays in the middle of the oven.  Also, the thermometer I place inside the oven reads a lower temperature than what the digital oven temperature indicator says, by anywhere from 25 to 50 degrees. 

Any suggestions?  Thanks, I love to bake breads (especially sourdough), have been doing it consistently for 8 months and want to keep improving, to the point that someday I may feel proud enough to put up some photos!

Sue