To improve the unambiguous slot sequence, I propose q = ch, allowing two ch in the pattern (the first one is equivalent to q):
qochy = chochy
qokchey = chokchey
qokedy = chokedy
qokeor = chokeor
qokeody = chokeody
qol = chol
qedy = chedy
olqo = olcho
qko = chko
Exceptions:
qokechy but no chokechy
qokeechy but no chokeechy
Statistically, as a replacement for q, ch is the best choice:
The complication of gallows dancing differently around q and ch can be resolved by removing gallows from the slot sequence.
qochy = chochy
qokchey = chokchey
qokedy = chokedy
qokeor = chokeor
qokeody = chokeody
qol = chol
qedy = chedy
olqo = olcho
qko = chko
Exceptions:
qokechy but no chokechy
qokeechy but no chokeechy
Statistically, as a replacement for q, ch is the best choice:
The complication of gallows dancing differently around q and ch can be resolved by removing gallows from the slot sequence.

