By the way, I think you've misinterpretaed taws (modding-wise, I wouldn't dare to tangle with him *g*) hint concerning fear range. As far as I can remember, it doesn't indicate a percentage of weapon range of the corresponding unit. It's just an absolute value in "in-game-distance units", which are the same units as those used for weapon ranges, just to give you an idea. And it refers to units that casue fear only ("scares enemy" in unit stats land). A major Problem is that no matter how low you set the fear-range, in the game, it is always triggered at about 100 units. I've tried small whole numbers, negative values and fractions. If anyone had a different experience, I'd be very glad to know about it!
The blood bonus refers to a certain amount of kills (doesn't matter whether close combat or ranged combat) inflicted on the enemy in a certain amount of time. I
guess that it is measured in % of the unit
inflicting the casualties, and that the amount of time to trigger it is rather short. Also, the bonus lasts only for a very short time in my experience. I'm sorry that I can't give any more detailed information about this.
Have I mentioned nuisances yet

? Well, I've got one more: routers units bestow flank- and rear-attack mali on pursuing units! And I cannot circumvent that as long as I can't set a higher bonus for "routing enemy units nearby".
Oh, and a word of warning: I've experimented with giving artillery units the ability to inspire. It lead to regular CTDs in battles after a certain amount of time playing the battle.
And it's also important to know that the unit-info-box in the game only shows the "biggest" (doesn't matter if negative or positive) factor working on a unit at a given time.