Being a father of a quiver full, I'm accustomed to several re- and upcycling, erm, cycles. Particularly nib-swapping is something that I do almost weekly, thanks to the fact that my children are powerfuld arrows (No, don't call them spoiled brats... please!) So, having plenty "pre-owned" LAMY FPs in my household, I'm now considering re-using some of my school-kids' FPs, but in an upgraded version. Is anyone here prepared to share their experiences how the Z56 nibs do behave on a, say, LAMY AL-star, or LAMY nexx, or LAMY safari? Thank you