Originally Posted by jadocs

I would just rotate the bars down a hair. Interface between the top of bar to brifters is level. On those bars, ideally you want a level surface from the tops to the brifters. You don't have to match the angle of the stem. On non compact bars, you would rotate the brifters so the bottom is level with the drops. In both cases you need to ensure you can shift and brake properly in the drops.