If mudra GCDs were removed and implemented 15-20s mudra CDs and a 0.5s animation, majority of the latency problems with ninjutsu would be nonexistent. The system would be the exact same as what we currently have in place minus the ability to double up mudras.

Why do people double up mudras?

Latency. None of the ninjutsu require two of the same mudra, so it's not commonplace to double up on a mudra unless the user mis-clicks. A mis-click is capable of happening with any skill so the threat of messing a mudra up is still available.

Would regular CDs simplify the system? Yes and no, sure it would decrease the chance of screwing up a ninjutsu, but your rotation remains the exact same as it is now regardless. As it stands now, even at 50 ms, there is still heavy delay in some instances, and with that comes the inability to maxiimize DPS like I can with any other class under the same circumstances. Something needs to change since they claim the delay is something they are unable to fix from a server standpoint.