How to get unit experience the easy-cheesy way (bug/exploit)

One of the best parts of playing TW games, in my opinion, is leveling up your units. There's nothing like a full stack of unstoppable, highly experience troops. However, CA might have set the bar a little too high this time around when it comes to gaining experience for your units. The following is a step-by-step instruction of how you can create a stack of experienced units without actually having to fight in a zillion battles. Note: this exploit works in vanilla as of v1.6.

We'll use an exploit where units' experience 'round up' when they are merged.

For this example, I will use line infantry with a full unit strength of 120 and 3 chevrons.

We'll need 3 full units each with 1, 2 and 3 chevrons respectively (ie. 120^, 120^^, 120^^^). We'll also need one unit with slightly less than half strength between 50 and 60 men and no chevrons (ie. 59) and any number of full strength units with no chevrons (ie. 120, 120, 120...), in this simplified example, I will only use full 1 unit with no chevrons.

1. This how the army card starts off:
120^, 120^^, 120^^^, 59, 120

2. Merge 120^ into 59
59^, 120^^, 120^^^, 120^, 120

3. Merge 120^^ into 59^
120^^, 59^^, 120^^^, 120^, 120

4. Merge 120 into 59^^ (will result in 59 and 120^)
120^^, 120^, 120^^^, 120^, 59

5. Merge 120^ into 59
120^^, 59^, 120^^^, 120^, 120^

6. Merge 120^^ into 59^
59^^, 120^^, 120^^^, 120^, 120^

7. Merge 120^^^ into 59^^
120^^^, 120^^, 59^^^, 120^, 120^

8. Merge 120^ into 59^^^ (will result in 59^ and 120^^)
120^^^, 120^^, 120^^, 59^, 120^

9. Merge 120^^ into 59^
120^^^, 59^^, 120^^, 120^^, 120^

10. Merge 120^^^ into 59^^
59^^^, 120^^^, 120^^, 120^^, 120^

11. Merge 120^ in 59^^^ (will result in 59^ and 120^^)
120^^, 120^^^, 120^^, 120^^, 59^

12. Merge 120^^ into 59^
59^^, 120^^^, 120^^, 120^^, 120^^

If you made it to this point, I'm sure you can figure out the rest of the steps to turn your raw recruits into 3 chevron killing machines without having them fire a single shot. All you need is a 'seed' army of full strength units with every number of chevrons being represented and 1 understrength unit of just under half the full strength as a merge recipient. You can apply this exploit with any number of new troops for any number of chevrons and your original troop's experience would never be 'diluted' like they would if you retrained them. The catch is, you need to fight a few battles first to get your initial seed army. Also, you may want to save your game first in case you make an error the sequence of merges (and yes, some of you might have noticed that there is a definite sequence you have to follow).

So why is this exploit possible? I seems pretty clear that when you merge a full strength unit into a slightly less than half strength unit which has one less chevron, the computer fills up the smaller unit and 'rounds up' its experience, in effect giving it an extra point of experience.

This is total cheese, but if you want your 9 experience army short of using some kind of trainer in the gc, this will probably do the trick.