What happens if/when using sacrifice and the stock grows larger than your leadeship permits (except red values and crown (?) and information that your stack is too big). What are consiquenties? Can you use only allowed stack or not that stack at all? Have you remove overhead before next battle? Or what happens/you have to do?

Wenla

The troop is out of your control, it moves around the battlefield mostly assuming defensive posture.

I found out that sector24's thread about paladin on impossible with zero losses is an excellent read, even for us, non-perfectionist players. It's packed with very useful hints, tactics and info on various types of mobs.
But i am sure most of you already know that. For those (like me) that might find useful information, there you are:

http://forum.1cpublishing.eu/showthread.php?t=4979

Fun, fun above all! How do they say? Whatever floats your boat, right? ;)

It will move around out of control preventing you from finishing the battle and even attacking your troops, until the number falls enough so your leadership is enough.

Also what can happen (but not very often) is that the number goes above 150% of the original - than they will go FRENZY
Why is FRENZY worse?
When your unit is in Frenzy - it turns HOSTILE only - and is fully dedicated enemy - attacking your units each time.

Happend to me using ghosts (when fighting large armies, and my own gosts attacked enemies even when out of control - so their number have risen more and more)
also when used vamps (I had one stack of red bats and one stack of red vamps - when I transformed any of these - the both went frenzy... 2/5 of my army turned against me - not nice look, believe me)

Then, can it be eh...surgically fireballed? Just a little? :-P

Yes you can do that and actually you could possible use this to extend a battle for resurrecting fallen troops. This may work especially well with the split - Time back 'feature' of Griffons.

When you have units just out of control (101% ~ 149% of our max unit cap) you may finish tha battle w/o problems - I have so accumulated zounds of ghosts (after the battle I just moved the overcap units to my backup slot - gosts for free :) ) - the nuber counter is blue.

You can't end combat when your units go FRENZY ( they are real enemies - their count color is red, and they only attack you - as good behaving enemies) - now you can't finish the battle whan this happens - you need to fireball tham or anything - but hurry - as you can imagine that if you have i.e. 200% of your max red bats (and your leadership is 30K ) killing them in one turn is nearly impossible (killing the one half that is above your normal)

Freeze them, fear them, slow them, trap them, this opens a truckload new fun options i see :)
Can't wait to get those friggin' resurrect/sacrifice spells :(
But i accomplished my first great...accomplishment: i bought me a brand new wife!! (Rina). She wants to have babies now, How can i do that? I fear a simple cond** won't be enough as 'protection' this time... ;)

Rina's babies are week - ignore her... Any artefact would be better (basically there are weak boots in the game - but still I don't know how the game decides in which slot will be newborn baby placed)