Config files are definitely the best way to go:
Create two config files from the menu and startup with those configurations separately.
For the BTC mining instance, startup BFGMiner with
-S opencl:noauto to disable GPU and use your usual startup parameters.
Add your additional pool and prefered other settings in BFGMiner's menus.
Go into the (S)ettings, (W)rite config file, and edit the location/filename to something meaningful like C:\bfgminer\btcmining.conf
You can now open that file up separately and add other options as you see fit (file is in JSON format) and should look similar to this:
{
"pools" : [
{
"url" : "
http://mint.bitminter.com:8332",
"user" : "user",
"pass" : "123",
"pool-priority" : "0"
},
{
"url" : "
http://backupmining1.com:8332",
"user" : "user",
"pass" : "123",
"pool-priority" : "1"
},
{
"url" : "
http://backupmining2.com:8332",
"user" : "user",
"pass" : "123",
"pool-priority" : "2"
}
],
"intensity":"4",
"kernel-path" : "Path/To/The/BFGMinerDirectory"
}
The other instance for LTC mining you would do the same thing, but startup with
--scrypt to enable LTC Mining. You can add additional helpful Scrypt centric options like thread concurrency, etc.
Once you're happy with the pool and backup pool settings, you can save another Config File. Go into the (S)ettings, (W)rite config file, and edit the location/filename to something meaningful like C:\bfgminer\ltcmining.conf
So.... now whenever you want to startup BTC and LTC instances of BFGMiner, just use the commandlines:
bfgminer --config btcmining.conf
and
bfgminer --config ltcmining.conf
For additional info on how to tweak your 7970 for best performance in LTC Mining, check out this thread here:
https://bitcointalk.org/index.php?topic=117221.0It has a lot more info and settings than I can put in one post, and depending on your setup, not all tweaks will result in positive hash gain. So basically Your Milage May Vary.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
Hope that helped....