Pronouncing "ign": To "g" or not to "g"

The English spelling system is full of complexity and apparent anomalies. For example, why is the "ig" in sign is pronounced / ay / and the "ig" in signature  pronounced / ig /? In what follows, I will provide some guidance for pronouncing this problematic sequence of letters. There are a few exceptions, but without them, English would lose part of its undeniable charm. Don't you think?

Ig at the beginning of a word: the g is pronounced

ignition, ignite, igneous, ignore, ignominious, ignoramus.

Vowel + ign: silent g

In this list are campaign, reign, sovereign and feign. No matter what comes after the "ign";  the g  is never pronounced.  Aig = ai,  eig = ei.

Consonant + ign  + ∅: ign = /ayn/

After consonant + ign, ign is pronounced / ayn /. Sign, design, resign, align, malign, benign, design, realign.

Consonant + ign  + consonant: ign = / ayn /

Signs, assignment, alignment, benignly.

Different vowels after -ign lead to different pronunciations.

Consonant + ign  + e, i or o: silent g.

Signed, signee, co-signer, signing, consignee, designer, resignedly.

Consonant + ign  + i:  g = /g /

Before suffixes such as-ify,-ity,  and -ificant, however, the g is pronounced. Dignity, dignify, significant, insignificantly.

Consonant + ign + a: g = / g /

Here  the g makes its presence felt: designation, signature, assignation, signal, signalize, malignant.

There are a few words derived from French where gn is pronounced / ny /; peignor, seigneur, vignette.