You should look into SEN ENABLER. You can easily change it by pressing R3 which patches your cid, mac address, and psid. Then you can hide your files, make your system look like its on ofw and disable syscalls, and you can also delete your history.....all from one easy to use tool that is on your ps3....it literally takes me 5 seconds to do. just make sure to mount any games you're going to play before you do all this.
That's my 2 cents...I love it because I can easily change all my info in case i get banned...if you've got any questions feel free to ask me