You can save the second smite for the Scuttle this way, and if you get invaded you can choose to instantly smite the camp. For example, if you smite Blue to start, and you get invaded on your Red, then you have smite up to secure the Red
I just can't seem to get vision on the krugs whenever I use E on them over the wall, I hit them, and they run over to me, but no matter how close I creep up to the wall I never get vision and thus can't smite the big Krug. I am only starting out with Fiddlesticks, what am I doing wrong?