Uninstall is not a problem… in menu you can uninstall drivers and after that you can uninstall the apk normaly. Works fine for me on five different devices.
1) SGS 3, 4 & 5
2) Galaxy Note 10.1 (2013)
3) Huawei G700
… no fear
The LPA modding is only to set them from True to false. You need them for working with third party music Apps.
Backup the "build.prop" is enough security.