The wizard virtualizes the config.wtf file.
If you open up the Toolkit, you can see this under Virtual Files (in the top left).

By default, even with a single install...
You can set your addons to load or not load on a per character basis.
And they're either configured across the account or on a per character basis too.

If they're configured across the account, you could likely add whatever saved variable file is used for that character.
Which would then be virtualized.
There is a Virtual File wizard, if you right click on Virtual Files in the Toolkit.

I've not virtualized anything myself, but remember reading someone wanted an addon to work differently for boxing than running the game without IS Boxer... and Lax told them how to virtualize the file.
So it should be doable.




FTL is dependent upon your latency.

Your main targets something different.
It takes the server a bit of time (about as long as your latency) to register this.
The slave wants to assist, it asks the server what your main has targeted, and gets a response... approximately double your latency.

I have a mapped key I made for having two DK's set Focus to one target.
I gave it two steps.
With an assist on key press (execute a step on press or release).
And a keystroke action on the next step.
That way, I can push and hold the key to account for latency.
And when they have the correct target, I can release the key.

It all depends on what you want.
In PvE, you can switch targets, press your hotkey for FTL Assist Me, wait a second...
And then do whatever.
In PvP... I switch targets with the active toon, and spam my DPS key, and the assist happens within a second or two (usually quick enough to not notice much of a delay at all).




You can ask questions here; there are a lot of knowledgeable people.
You can also ask on the www.isboxer.com site, in the forums there, and Lax or someone will answer usually quickly.

The best resource is likely the IRC, which opens in your browser, on the IS Boxer site.
Ask your question and wait, or go to another tab.
Don't leave the room, and check back periodically.
There are usually 50+ people there, but not everyone is actively on that tab.
Asking if anyone is around is okay, but just asking your question is better... because when someone notices it, if you haven't left the room they can give an answer or their best guess or just point you in the right direction.

Too often someone asks if anyone is around.
Or they ask a question.
And leave the room, 3 minutes later.
And I (and I'm sure others) check the tab say 29 minutes after they're gone.
No point in answering then.
If they had asked the question and stuck in the room; even a few hours later... is likely faster than a forum response.




For an i5 processor, the best option I found...

The main slot/character has one core exclusive to them.
The slaves/everyone else share the remaining cores.

You can experiment with all cores on all windows, etc.
But the solo core for the active region worked best for me.