@cwazy spin ~ no there's not.
there have been multiple threads about this topic. next time PLEASE look through the forums.
signo tips come in multiple varieties, as the word "signo" refers to the ink uniball uses in its pens. thus, there are many different pens, all bearing the signo title.
obviously, many of the pens have different styles, creating confusion on which tip to use.
you want the tips that look like this:
http://tbn0.google.com/images?q=tbn:9PdCvz...cents%25202.jpghttp://www.jetpens.com/images/p_unsd28bbz.jpg