So I finally inked up the M805 (Medium nib) with Pilot Iroshizuku Kon-Peki to complement the blue of the pen...and it is skipping quite badly. Having used the Anthracite (Fine nib) which is really smooth, the scratchiness of the new arrival is quite pronounced. I'll have to get to work on the nib.
Thea_mJust got my pen back from Penultimate. I decided to get the nib ground as an italic. What a difference! I now understand the reason some people specifically seek out italic nibs.