Initial conclusion after first 2.5 hours: Run times with untwinked Necro are slower than expected. Bad idea! Definitely had hoped for faster runs than his current ~4 min on P5, everytime in char screen I'm itching to click on the Java.
Personal goal for now is to get him to 3.5 mins by just getting better, optimizing runs a bit and getting more familiar with spawning. In general his map his good though.
I also confirmed for him that P5 is more efficient than P7 by a small margin, so he'll be running P5 even though his first qualifier dropped on P7 and I tend to take these things as signs.
Also cluttering on P7 is more of an issue when running with a non-optimized character, because you tend to kill more cows in the same area due to slower overall kill speed, resulting in more cows running towards you before you move to next area.
If interested,
here's the data required to compare efficiency on different player settings (provided by
@Gripphon during last RFL).