Originally Posted by 'Vmpwraith',index.php?page=Thread&postID=176479#po st176479
It wont stop the spell unless you add a /stopcasting to the macro or you mash the key very fast and the first frostbolt hasn't fired yet.
You will just have to make sure you have enough , , to get the spell cast before you start casting it again. It should be ok it will depend on how fast you mash the key.
also if you want more than you could
/castsequence frostbolt , , , , frostbolt , frostbolt, frostbolt
/castsequence dot1,dot2,dot,3,dot4, , , , , , ,
so that it dots and casts frostbolt then just frostbolts add more , , spaces for timings