I've been using the MG8-A, MG6 Fine Point, & BHM6 Extra Fine Point Pentel refills for 39 years. I've never not had them in my desk drawer or briefcase. There was a time when they were difficult to find but I buy them in bulk. They are the best pen available. I wish Pentel would start the manufacture of the MG6 & BHM6 Fine Point Refills again. I write medical information on applications daily and these refills can print very small letters without a skip in a limited amount of available space. I'm happy to hear from the Pentel phone customer service representative that the MG8-A refills are still flying off the inventory shelf. I hope Pentel continues to produce these excellent writing instruments.