this is precisely how I've always done it.

never been a problem, and i've done it on hellscream, which is lag-tastic, especially when in dalaran.

The simple fact is it isn't possible no matter how fast you click each button on some servers to complete this. The item isn't supposed to trigger any GCD but many times I and others got the "item not ready" notification. Anyone (not necessarily you) who boasts about how they don't need special macros or programs b/c they got it on the first try isn't special. You just happen to be having a superb connection with the server so you don't understand what some of us went through.

Also, go to one of the floating islands just off the main rock, but still where you're "rested". Eliminates a good portion of the lag.

Ok ok, I did some testing. I have an old router that is sending bad packets and causes a good deal of lag and disconnects. So I hooked up this old router and my latency was near 1500. Anything over that and I'd get disconnected.

I installed the addon and successfully completed the achievement with a latency of around 1500.

I then removed the addon and logged onto an alt. I still managed to complete the achievement with a latency of around 1500 only by following Malohkan's instructions.

All the addon does is bind the torches and left click to your scroll bar so all you have to do is spin it. That does not remove latency problems, that removes user error and reaction time. If done correctly, Malohkan's method eliminates user reaction time too. If you are still failing it is because of user error.

It doesn't matter what method you use, if you have a latency of 1500 it will take that long to send signals back and forth and no addon can change that.