Not really. A L10 character is high priest in a faith and has lots of hours rping instead of bashing mobs is not more powerful in a pkill situation than is the L50 PC with lots of combat skill. The HP character might have more resources for retribution, would certainly have the attention of his/her deity if online and other things. But the L10 PC has no right or ability to "smote smacks you upside the head with his high priest's mace of massive mighty goodness." And if the priest did that, the L50 twink fighter is under no obligation to fall down and play dead.Because ICly, depending on rp, a level 10 character who is high priest with a lot of hours playing rp instead of bashing mob would be far more powerful than the level 50 twink who began a week ago.
That being said, it doesn't mean that the L10 HP can't or shouldn't rp from a position of power as a high ranking member of a church. While most people do not condone a twinkish style of play, nor do we set rules that tell a player he/she cannot rely on the skills they have. This is the same as when we do not allow people to claim any other power they do not possess. Examples include mystic rays shooting out of ones eyes, psionic powers, super-human feats of atheleticism and so on. All of which are actual behaviors the imms have observed at one point or another.
Now, if someone is code-stunned in the course of a pkill it is perfectly fine to let that person stand and follow under the assumption they are still stunned, because the code does not permit it. That is not my point in this.
We always stress that just because code allows you to do something, it doesn't mean you should (e.g. single-handedly killing every mob in your rival's temple). Likewise we must insist that if code is there specifically for a given situation, we expect it to be used. Killmode spar was not implemented to facilitate player v mob combat. In a nutshell, we want to avoid the following:
L50 Fighter ends up in a pkill situation with L10 priest (HP or not).
Appropriate type and acceptable amount of rp has lead to the situation.
All pkill rules have been adhered to up to this point.
L10 priest can't with reasonable rp avoid the pkill or chooses not to avoid
L10 priest smote calls the divine power of his god down to smite $L50.
L50 fighter smote falls to the ground reduced to a pile of smoldering ash!