RM2/RMSS weren't coherent as far as character creation rules and creature statistics, item creation rules and magical item statistics were concerned. It's something I love about D&D 3.5 (where the creatures follow exactly the character creation rules, and where for each magical item, you have the "construction requirements" giving you the cost, skills and spells used to create the item). I hope RMU goes this way, as it gives a feeling of coherency to the system... and simplifies GM's tasks!