Theres not enough macro space to play Ninja.

[Adamantium]

But I still don't see how its a DPS loss, its not about remember mp its about saving space and time, if I can get the same effect from 2 spells on one button than 2 separate buttons when I'm limited on space I'd rather do that. All it does is queue up the one it has the ability to do.

Because the choice between using Thunder 1 and Thunder 2 is dependent on whether you go for 251 Piety or not. If below 251 Piety, use Thunder 1. If at 251, use Thunder 2. There's never a need to have both Thunder 1 and Thunder 2 available to you. Combine that with the skill queueing issue that macros cause, and it's a DPS loss simply because you cast it a fraction of a second later.

Really only matters to people who like to min/max. Not a big enough deal otherwise, but it's still, objectively, a DPS loss.

[StouterTaru]

Because the choice between using Thunder 1 and Thunder 2 is dependent on whether you go for 251 Piety or not. If below 251 Piety, use Thunder 1. If at 251, use Thunder 2. There's never a need to have both Thunder 1 and Thunder 2 available to you.

Initial FireIII coming out of UI was 0 mp due to firestarter, you now have enough mp for TII at the end rather than TI. Happens almost 30% of the time if you are under 251 PIE.

[Adamantium]

Initial FireIII coming out of UI was 0 mp due to firestarter, you now have enough mp for TII at the end rather than TI. Happens almost 30% of the time if you are under 251 PIE.

You're right. I was just thinking in more general terms. Having a 30% chance to have enough MP for T2 at the end of your Fire phase doesn't make up for how clunky a macro makes skill usage feel, in my opinion, especially with how small a DPS increase it is to use T2 over T1.