Pilot Murex and Sheaffer Triumph Nibs

I was looking at my Sheaffer Triumph nib the other day and was thinking it looked similar to another pen's nib. It dawned on my that it's probably the Murex nibs that it looks similar to. At least to me. What do you think? Of course the "flaps" and feed on the triumph nib make it look a little different.

Pilot Murex and Sheaffer Nibs