Much too late in life, I learned what the best writing tool was. Pencils were always good, but they were too temporary. Old timey felt-tips, like Flairs and Sharpies, were strong and bold and made great signatures, but they got too mushy for everyday. I never liked ballpoints, so I went to rollerballs and stayed there. Good balance between a strong line and staying power. I always had to put a pad or something down underneath to make the best impression. Fountain pen I dismissed outright, thinking they were too scratchy and maybe one step up from dipping a goose quill in an inkwell.
My son introduced me to fountain pens. Fountain pens plural; they range from the cute Japanese Pilot Kakuno, mostly for children, to the high-end Japanese Sailor, to the American-made Cross (one of many). They are as smooth as can be and you don’t apply any pressure. You just let the ink flow.