jyreene
Member
I have a question, as I understand it the Sierra and the Wallstreet II are the same pen using the same bushings. I noticed that Sierras have a rollerball option, could I just replace the ballpoint ink tube with a rollerball ink tube in a Wallstreet II? For that matter could I do it with any pen as long as it was a ball point and the ink replacements were the same length?