SH3 Mini-Tweaker
Program + Tweak Files can be found here.....
http://www.delraydepot.com/tt/sh3sdk.htm
Edit - any file that you edit with this program will have a backup made of it, located in the filepath of the original. To activate your new settings move/delete the backup. I suggest moving as you can then copy back in and rename to get back to the default settings.