in game optional tools

[Aramina]

you do know in pvp it basicly forces the use of castsequence and dps is just fine lol take a lok at rdm mele combo in your pvp profile

What is done in pvp is not at all the same as a castsequence macro.

As an example, let's say you have Spells 1-4 and the GCD is 2.5 seconds. If you hit the button at exactly 2.5 seconds then it would work fine (barring spell queuing in ffxiv which I mentioned in an earlier post). BUT if you don't, the spell will fail, but the the macro will still progress meaning you skip a spell.

Spell 1.
2.5s
Spell 2.
2.3s (hit it too early)
Spell 3 fails.
2.5s
Spell 4.

If Spell 3 interacts with Spell 4 in any way, then it is even worse.

The macro does not (can't) take into account if you mistimed hitting the button. It only knows that you hit it, and hitting it means to go to the next spell in the macro.