As a lefty I second the Pentel EnerGel rtx. Although more expensive they do fantastic and the inks dries before my hand travels over the words. They are my favorite gel ink pen. The pilots don't do a bad job either. As far as traditional ball points if the point is bigger than .7 and it has stayed in my pocket it I still get smearing. I always have 2 pens in my pocket, a Fisher Space pen which is the backup and my primary pen of the day.