Naa Zenga, i have the same problem. I also do use the macro, but the ting is, when we hit our DPS button 2-3 times a second = Many signals send to the wow client. IF we also starts to spam strang in hope that it will go off, there is to many requests and therefor, strang dont go off.

IM experiencing with this by adding IWT and Assit in the mapped key as i have strang on, and make sure they keep staying on the target, but focus on casting the strang for a short second or so. Can update when i have good results.