Re: The only schecter guitar I own.
If you're going to own it, might as well figure out how to use it. Floyds are easy once you understand them.
In the most basic sense, it's a balance of tension between "springs" and "strings". The springs on the back provide counter-tension to the combined tension of all the strings. When changing the strings, especially more than one, you need to put something under the bridge to support it from pulling further into the body because of the "spring" tension being greater than the "string" tension.
The metal "claw" with two screws that the springs attach to inside the rear cavity is used to fine-tune the spring tension when you change string gauges or tunings. It can take a little tweaking unless you're replacing the strings with the same gauge and type you were using before (and maintaining the same general tuning). Just remember to stretch the strings a bit as you go and make sure the overall tuning and bridge adjustment is correct before finally tightening down the locking nut clamps.
I agree that there are plenty of videos and resources out there to help you and they will give you a better visual overview of the process. Take a look at them and let us know if you have any questions.
If you insist on paying someone else to do it, ask to watch and have the process explained so you can do it yourself in the future.
Good luck!