Best thing for autographed baseballs
 

In your all’s best opinion what pen works the best on an OMLB? I’ve personally been using a UniBall Jetstream Blue ink 0.7mm, but I want something a tad thicker. So I’m curious on what works better and if there is any long term bad sides to the Jetstream pen?

Go with 1.0. I have used uniball for years with no problems. Once in a while, a signer will smear. Usually, it's someone older. witster