hi guys . hope you can help me . ive got rust showing on my gal standing rigging. ive heard that if theres rust its time to change it, but its only five years old. this boat is new to me so im not responsible for not oiling it. as its only surface rust im hoping i can salvage it. also , the boat has aluminium masts and i was wondering if this combination may cause electrolisis. thanks guys ,any help would be apreciated.