Once I wanted to know more about Mace-Paralysis effect,
I trained two paladins at once in one party,
one (main healer) was Mace GM 12 and another one was Mace GM 17, brought them to Nighon and had them fighting Birds.
In every try the paladins successfuly paralized birds within two or three minutes with the Paralysis effects lasting for 12 and 17 minutes, respectively.
*)) Of course I saw to it that those Paladins were performing enough to nearly always strike successful blows.