1) Stock wiring is barely adequate for stock wattage. Trying to get away with higher wattage is not only dangerous, but counterproductive. The wires are just plain inadequate; it's like trying to drink a swimming pool through a soda straw. The improvement in seeing from installing good wiring and relays is often LARGE due to inadequate factory wiring.
2) What did your Morettes cost you and where did you get them, if you don't mind sharing? My warehouse and I are looking at bringing these in; not sure what the market will bear, though.