v3tekThe hole diameter on the stand is 19mm (3/4"). I don't own the 149, but I googled it's dimensions, and if correct, the diameter of the 149 is 14.8mm, so it will fit just fine.
RayFTo be honest, I blame it on my heavy hand more than the pen. I received it as a gift and have only used inexpensive fountain pens in the past with medium nib so, I wouldn't have the foggiest idea how to smooth it out.
https://www.youtube.com/watch?v=r35cV_pe0-Q