Reviewing my steps in making campaign longer

[milosh]

Hello friends!
First time posting in any Shogun 2 threads mostly because I was exclusively a Medieval 2 player until a few days ago.

I want to make my campaign 3 times longer by increasing turns per year.

Really need somebody's help.
I found this great tutorial http://www.twcenter.net/forums/showthread.php?t=458829
and this http://www.twcenter.net/forums/showthread.php?t=340047 great tutorial
but I'm probably doing something wrong.
I' using EsfEditor 1.4.6 and Pack File Manager 2.0.2 and here are my steps:

Spoiler Alert, click show to read: 

1. Opened patch5.pack file in PFM because that's where I found jap_shogun/stratpos.esf file.
2. Right click on stratpos.esf, then Extract/Extract Selected...
3. Opened stratpos.esf in ESF and edited CAMPAIGN_CALENDAR (changed from 4 to 12) as showed in first tutorial and saved changes.
4. In PFM File/New, right click on new pack file Add/File(s)... and I've selected stratpos.esf and saved as a.pack.
5. Copied a.pack file in Shogun 2 data folder where all .pack file are.
6. Created user.script.txt in scripts folder with a single mod "a.pack"; line as showed in second tutorial.

After this the game still has 4 turn per year.

Please, what am I doing wrong?
Thank you in advance!

[milosh]

Solved!