The result was a concentric fortress, which von Haschenperg had hoped would combine the best of Italian military architecture, able to carry heavy guns but with a low profile to protect against any incoming artillery fire. Various flaws rapidly became apparent. The castle's design had focused on defence, with the result that the guns could not easily be brought to bear on enemy vessels, which had been the original intent of building the fortification by the Camber; some of the angles of fire from the defences were blocked by the entrance and the high water table may have caused serious damp problems on the ground floor. Furthermore, the design was different from the other Device Forts constructed across the region and would have stood out as unusual and not in keeping with the King's general intent for the chain of forts.