In highschool and elementary I used the 0.7mm F-301 steel pen made by Zebra, but now my standard pen is the 0.7mm SARASA pen made by Zebra, black ink. It is the only pen type I really use. My family has a tendency to be pack rats, and have a large assortment of pens of varying quality, so I standardize the pens I use for my university needs and such. The SARASA has served me well for the past few years, the ink is a very dark black that shows with minimal pressure, and it writes ridiculously smooth.