That is a possibility... The troop producing buildings that ultimately upgrade valour through the master building are as follows in the build prod:

2) Bowyer
4) Swordsmith
6) Spearmaker
8) Gunsmith
9) Town_watch
23) Horse_breeder
24) Royal_court

The omitted buildings are the non producers and others.

From the table one could conclude that it is the buildings listed nearer to the bottom that take precedence. E.g. a unit that depends on a spearmaker armourer and royal court always gets it's bonus from the royal court. A unit that that depend on the bowyer and town watch would not get it's bonus from the town watch.

The majority of units either depend on 1 of the above buildings or one of the above and an armourer or other none producer such a ribat or military academy that doesn't give a bonus. This makes it difficult to tell. The units that depend on two or more +1 valour troop producers are usually cavalry.

The only units I can find that depend on two of the above buildings, and are not cavalry, are Janissary Infantry and Futuwwa:

JI: "{ SWORDSMITH3, MILITARY_ACADEMY, BOWYER4}"
Futuwwa: "{BOWYER3, SWORDSMITH}"

I'm pretty sure that neither of those get their valour bonus from the Master Bowyer. The Master Swordsmith (second in the list) gives the valour bonus in their case.

So this could very well be the case.
Quote Originally Posted by Rythmic
Just a thought, could relate to the order defined in the Build_Prod file.