Bic's roller black Z4 0.7mm pen

I am going to talk about the Z4 pen made by Bic. I only use this pen, when I can't find any other pen to use. I would have to say that this pen is not one of the greatest pens I have used in the past. The Z4 pen is a roller pen and tends to bleed out a lot of ink when using the pen. The comfort of the pen and the smoothness of the pen when it is placed between my fingers are the only two things I like about Z4 pen. Even though I had received the pen as a gift, the pens usuallyh retail for around $8.00 for a pack of four pens. The original Bic pen- just the simple black ink pen is better than this pen because you don't have ink bleeding through the paper. Now, I looked through the internet to see what other people have been saying about the Z4 pen, and they think that the Z4 pen by Bic doesn't bleed. Perhaps, it's just seems that the pen I had received was found to be defective. I don't mind buying another Z4 pen for myself in the future just to see if they had improved their product in the part of which the ink seems to bleed through paper.