When I first came up with the concept of the 2 Step, I actually messed up the ISBoxer code and ended up sending two key presses at once (both "2" and ";"). This worked just fine as far as DPS went, but I wasn't absolutely sure about the legality of it so I fixed it to alternate which ISBoxer sends each time I hit 2 on the keyboard. This way it only sends one action per keystroke and I was 100% sure that Blizzard wouldn't have a problem with it.

From what Ualaa says, either method may be fine with Blizzard, but I just wanted to make sure. I have too many accounts and time invested to do anything that I wasn't sure was OK.