The grand experiment is on. I have an extra Skyline nib which is hard as a nail. I am recontouring the underside, much like how Waterman flex nibs are ground (thinner at the edge, full thickness at where the two tines meet). I just want to give this nib a small amount of flex. This is baby steps for me before I go more dramatic. The pen it will rest in, is going through the final stages of a restore (the shellac which holds the sac in place is drying). Previously there was no flex or line variation with this nib (as tested before the restore effort). Tomorrow I will post the results. The victim is a Skyline Standard in black.