hey there, i just came across your article.
Good stuff, maybe a little hard to find the info you need.
I would do something like:
1. Bitcoin
A. Hardware
B. Software (Cgminer/Settings, max perf)
C. Temps and other stuff
2. Litecoin
A. ...
B. ...
C. ...
I`m not sure... My cgminer for BTC did not start with these settings (well it did but wacky)
cgminer -o stratum+tcp://mint.bitminter.com:3333 -u User_worker -p xxx --gpu-fan 55,55,60 -I 18 -w 256 -g 1
I got this:
https://i.imgur.com/xwvzoWD.pngThen i tried 9 and it worked.. it even works with your stated 14 but i`m getting way less MH then i got while mining LTC.
Ex.:
LTC 3x6970 = 1415 KH
BTC 3x6970 = 1181 MH
System is very responsive so i`m guessing the cards are not maxed out