As the proud new owner of a Grail Pen--Sailor Black Velvet, I'm looking for the perfect ink match. I've tried Iroshizuku Yama-guri and it's too somber and woody. I'm looking for something like root beer to mirror the color of the pen. Two samples are in the mail: Robert Oster "Caffe Crema" and Akkerman "Dutch Masters #4 Hals Oud Bruin".

Suggestions welcome!