My first question is about the metal Elabo pen from pilot, about its construct. Can any owners confirm or deny that the grip section (the section that holds the feed and nib) is indeed made of metal? I am pretty sure the barrel itself and the cap are metal but I'm confused about the grip because it has a different colour to the barrel on the coloured versions of the pen. The second question could be a bit more tricky: would it be possible to transplant the nib-feed system of a #10 Pilot FA nib (from a Heritage 912, Custom 742, for example) into the Elabo? I understand the feed pops out on both of these pens, and through analysing photos of both these feeds, they were rather close in diameter. This would be desirable to use both the flex in the FA nib and the heft the metal body the Elabo has to offer. Any tinkerers who own both these pens I would greatly appreciate a test of this hypothesis