Rollerball Refill for Parker Pen

[woodguy1975]

I may be way behind here, but in searching the internet for refills I discovered that Schmidth makes a capless rollerball refill that fits a parker pen. I like the idea of being able to convert a standard parker pen to a rollerball. The gels are a step up compared to the ball point, but the rollerball would be another step up.

Has anyone tried using these? I'm thinking about ordering a few to offer my customers at an upcoming show.

Thanks,

John

BTW, I also discovered that Schmidt also makes a pressurized parker ball point refill.