XL & BK Super Mod troops

Salutations All,
I am currently running BK's Super Mod ( which is great,btw ), but used to play the XL Mod. I've found that I miss some the more unique Xl unit, so decided to add them to the BK Mod. I did this by cutting and pasting those that I wanted from the Xl EarlyUnitProd txt. file to the BK EarlyProd txt. file. I also changed those provinces that were'nt compatible betwixt the two. Unfortunately, the Xl units never become available.
Did I miss something, or are the units simlpy not compatible? Any help here would be greatly appreciated.

There is more to it than simply copy and pasting. I could run you through it if you wish.

Also there is a hard-coded limit of 256 units, so any you added would be outside that limit because BKB has added 256 units in his mod.

Rythmic,
On further searching, I think maybe I'm over the 256 limit. I addedn about 35 units. Thinking BK's Mod may already be @ limit. If u have other thoughts, they would be appreciated, tho. Thx.