Well we don't WANT you to need to do a SLAM. The SLAM is only if your water get algae. You can bring the FC up to SLAM level if you get a dead animal in it, a child has a potty accident in the pool, if you get a lot of stuff in your water from a big storm, etc.
As far as doing the cc test it would be a good idea to learn how to do it as it can show you if there is anything hiding in your water. It is easy. Just remember the water will turn back to pink if you let it sit after doing the FC or the CC test. Don't worry about it. Once you get the test water to clear call it good.