how does work kensei weap focus crit range in wolf form ?

[hyppolite]

hi

i built a druid 9/fig 8 / monk 3 , kensei 5 focus druid weapon
got a short sword to dex att/dam ,with ninja monk .
in wolf form , spé bludgeon , i should crit on 15-20/x3 and only crit on 17-20 (as basic wolf form)

any clue?