Hi There from Richard in Portland, Oregon USA. You did not mention the type of plane you are building; so what my comments are will be general in nature. The slight increase in dihedral may not affect your model very much. My only thought is that the plane will fly a bit more stable by itself. If you are building a low wing fast plane, inverted flight might take a bit more controlling, and maybe a slight more aileron control to change flight direction. Other than that, you may not even notice any flight problems at all; so continue with your construction, and report back what you find after flight testing.
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