Wrap - Trap effect - low damage, (low turns?)

[Zinsmiter]

It seems like the wrap squeeze effect does 1/16 damage when it should deal 1/8.

 

The squeeze effect should last 2-5 turns using wrap but i don't recall ever getting 4 or 5 so maybe that should be looked into as well.

 

 

I presume most of these are true for other similar trapping moves like Fire Spin.