I'm wondering about transferring stats between the WFRP 2e and WHQ and Mordheim game systems, or from D10/D100 to D6. I've heard and read that the tens digit of characteristics in WFRP is typically supposed to represent a given stat in the other systems, like WHQ and Mordheim. I don't get that though, since say a strength of 30 represents a(n unmodified) 30% chance of success, or roughly 1/3. Translated to the D6 system used in the other games, this would be better represented as a 2 (33%), not a 3 (50%), IMO. But then, a strength of 2 is substandard for a human, isn't it?
I'm curious as to how the justification plays out for using tens digits, if it's more than just a question of keeping things simple. If you like to use WFRP characters in other game systems, and vice versa, how do you do it, and how do you justify it? (assuming that you do, since justifying stuff is such an integral and satisfying part of Warhammer fluff! )