Pushing "5" on your main and sending "5" to your clone is fine.
Pushing "5" on your main and sending "9" to your clone is fine.
Pushing "5" on your main and sending "5" and "9" to your clone is fine.
Pushing "5" on your main and sending "5", waiting a second and then sending "9" is NOT FINE!!!

You cannot use any waiting commands as that constitutes botting. As long as any action your character (or characters) takes is a direct result of you pressing a key then you are fine.