Uni-ball ZENTO Gel Pen (0.7mm)

I'll ride or die for the Uni Zento. The body is soft touch and very comfortable to hold. The retention mechanism and click are very satisfying. Probably the smoothest gel pen that I've ever used. As my handwriting has changed and improved I started preferring the thicker 0.7mm pen tip over the thinner ones but your mileage may vary.