as expected, my four oblique masters to build a VF (width and weight axis) had only few matching glyphs ((i made the masters individually (regardless matching), then combined)).
some glyphs with curves are designed with added nodes (more than just extremum nodes). those nodes define curves the way i prefer.
to match masters, i had to decide whether to keep/force the complexity (adding nodes in the respective masters glyphs) or delete nodes/simplify outlines (compromise the design). i did both, depending on situations, to learn about VF.
the result makes me uncertain. i fear for the coherence of the font design and quality.
complex glyphs may interpolate bumpy, depending on my rather guessed positioning of the added on-curve-nodes. this can be super detailed (only notable zooming in or print at large).
simplified designs deliver better interpolation but may lack expression.
how consistent are you regarding this problem? do you rather simplify or not?
in the Euro glyph (€) i even did redesign two curves without extremum points , since i couldn’t make it work smoothly with adding complexity.
what do i risk/can go wrong with missing extremum points?