Originally Posted by
MrScribbler
Whomever gave you the guide is pretty good, but as for when to use them, never use surgical in clan wars, because it'll only get you a star. For pushing, at th 10 you have to start being surgical (unless you're absolutely incredible) at 2700-2800 or so, so I recommend being surgical if you're farming in masters. If you want a more detailed guide, I'm pretty sure zachUVA put together a nice one (it was for farming, but the same strategy could be used for pushing too).