Found this image on my SD card; I guess a certain Nagahara M. ground this nib to buttery perfection? Naginata Togi means "long sword" ~ this is resembled by the longer tines of this particular nib, lending to greater flex than expected. It's also a 22K nib, which is rather unique, particularly nowadays.
The Nagahara Nib Story is a must read for fellow FP enthusiasts...