I don't think you'll ever get a flat transition with those bars to be honest. For that you'll need a compact shape like Zipp Sl80, FSA compact, Enve compact etc...
Or Deda RHM02 for about 10 quid.
@Lolo started
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I don't think you'll ever get a flat transition with those bars to be honest. For that you'll need a compact shape like Zipp Sl80, FSA compact, Enve compact etc...