Does anyone know of any heavy fountain pens out there? I mean substantially heavy. Preferably refillable ones, like a piston fill one. I have developed "Essential Tremor." This is a condition that causes my hands, arms, and head to shake involuntarily, sort of like Parkinson's Disease, but different. I hate it, because hand writing, which I love to do so much, has become difficult and messy. Using heavy pens helps a lot, but the only heavy pens I've found are ball point pens. Does anyone have any suggestions? What is the heaviest fountain pen you have ever used?