Thanks for the clarification. Your explanations make sense, though I don't think the manual or the offical wiki explain this well. They don't list shields in the weapon categories and since it is unlikely anyone will use a shield by itself you would think they would adust the shield descriptions with a "counts as a second weapon" addendum. Nevertheless, thanks for clearing that up for me.
Has anybody noticed that when equipping a medium or large shield it appears to calculate the deflection bonus correctly but applies a larger than described accuracy penalty. Ex. (My Eder clone equips a battleaxe and his accuracy is 54; but when he adds a medium shield his accuracy drops to 38) Based on the shield description shouldn't it only drop 4 points?