I love that pen you have shown with its patriotic blank !!!! Thank you.
I believe this is a new kit for PSI, and I always look at the instructions. In my opinion, PSI does a great overall job in presenting instructions; their kit instructions are more complete and detailed than for any other pen kit company. I particularly like the way they specify bushing dimensions for their kits using a diagram at the end of the verbal instructions.
Sometimes, however, as with any published information, there is a mistake or a point that needs clarification.
If you look at the instructions for the Post Graduate, you will notice a discrepancy in the stated tip bushing size, comparing Diagram B (which refers to the tip bushing as the smaller bushing used for the 8mm barrel) and Diagram C which states that the two bushings for the 8mm barrel are the same size of 0.475".
Having made a Post Graduate, can you please tell us which is correct and what is the actual size of the tip bushing. Thanks.