Sorry for the delay. You caught me by surprise! I didn't expect the current to end so soon, but fate would have it on a day I work a double shift.
Ok...to get the ball rolling, there are several scenarios in LoME and the OR book that have one form of "reinforcements" or another. To have a reasonable discussion of these, let me set some basic guidelines.
First, assume a medium sized army. Usually between 500 and 750 points. Most players would have one major hero, one or two lesser heroes, a few elites and a large number of standard troops. Size would generally range from the 35+ to 60 models.
For the first discussion, let's look at the rule used in Clash of PIcquets and a couple others.. You select one half of your force ( in models, not points) and deploy them on the first turn. The other half comes in on future turns based on dice rolls. Each turn following, there is a chance future models will not come in, or may come in on your side of the table but placed by your opponent or, if you're lucky, come in on your side of the table where you want it.
The discussion I'm interrested in seeing would focus on these topics:
1. Do you put your primary hero on the board first and risk his exposure for a while, or do you hold him back until things are "safer" and risk he may not arrive soon enough?
2. Do you bring all your Elites ( Trolls, Sentinels, Guard, etc.) on the board right away or prefer to bring on more standard warriors to have greater numbers?
3. If you have enough archers for volley fire, do you even bother trying this considering 10+ archers would take up most of your starting model allotment or do you just accept that you will probably not volley in this scenario?
4. Do you bring on your calvary now and hope to jump the enemy early or bring them on later with the thought that their greater move will allow them to catch up to the initial deployment of foot troops?
5. Any other notes or deciding factors I may not have thought of here?
Obviosly some of these answers will be based on what type of army you take, how much calvary you have, etc. Feel free to put in some of that. I doubt there is any "right" answer to any of this but I'm sure some themes will arise that many of us use. I'll give a little time for others to reply first before I post some of my thoughts.