Nice website!
I do think the damage is a little off for a nightstick. I 1.5 foot club shouldn't do more damage than a longsword
JMO a wood weapon like a club shifts damage down 1 die type from its sword equvilant and rduces crit to 20/x2
Therefore
club=longsword Longsword 1d8, club does 1d6
nightstick=shortsword Shortsword 1d6 nightstick 1d4
greatclub=greatsword Greatsword 2d6 (aka 1d12) greatclub 1d10
and as an extrapolation yawara stick=dagger dagger does 1d4 yawara does 1d3
I do think the damage is a little off for a nightstick. I 1.5 foot club shouldn't do more damage than a longsword
JMO a wood weapon like a club shifts damage down 1 die type from its sword equvilant and rduces crit to 20/x2
Therefore
club=longsword Longsword 1d8, club does 1d6
nightstick=shortsword Shortsword 1d6 nightstick 1d4
greatclub=greatsword Greatsword 2d6 (aka 1d12) greatclub 1d10
and as an extrapolation yawara stick=dagger dagger does 1d4 yawara does 1d3