One thing it sounds like you may have overlooked in your setup of keyclone, your do not pass keys.

Keyclone broadcasts every keystroke to all instances unless you tell it otherwise.

Most MBers put at minimum WASD on their do not pass list, so only the active focused window receives your movement commands. Additional keys like /, enter, or spacebar are also sometimes added to that list.

You can also set keyclone to the inverse, where it does not pass any keystrokes besides the ones you put on the list.

When I set up my first set of accounts I muffed my links and had the result be that one toon started falling behind because he was linked to my main account, which was not supposed to be in the chain (and wasn't in the group). I returned those battlechests for a refund and canceled the accounts. Either that or you had cases where someone was dead or out of range when a kill or turnin happened. Check the links in account management or call Billing to have them look at it. One level behind by level 8 seems to me that that toon isn't linked right. Figure it out while they are still trial accounts, since you can cancel and redo.

I'll also note that people have had fun with balance druid teams too, though not sure how much arena they've been.

Read up on Jamba, it'll be a help once you're settled in. (Macros forum sticky)

I had to set up my accounts on the phone with Billing, but you're right, 3 seems to be the cap, and setting that 4th one up takes another IP or Billing's help.

Entering the realm of the multiboxer brings much higher scrutiny of your accounts, so yes they can and will catch the difference in wife's account. Recall there will be obnoxious and jealous haters out there who will report you regardless of what you do.