The cleartarget is going to happen every time you hit the macro, so it'll stop casting next time you press it.
Damn, I'll try to find a way around it.

Quote Originally Posted by 'Kel',index.php?page=Thread&postID=193421#post1934 21
You could try the /click castsequence method (explained elsewhere), it might be possible to have your first macro as /cast Pyroblast /stopcasting and then the second clicked macro as your normal cast sequence.

I can't remember if an interrupted cast incurs the GCD though, if it does I guess this method won't work.
The "/cast Pyroblast" will trigger the GCD, so I think this method won't work.