Yosemite: Disabling inertia scrolling using scroll wheel for the mouse

Is there a way to disable inertia scrolling (scrolling speeds up the faster you scroll the mouse wheel) for Yosemite for only the mouse? I understand the reason for inertia scrolling for the trackpad, but makes no sense on the mouse.

I've tried various fixes in regards to this issue:

1. Downloading Scroll Reverser based on this thread.

2. Tried this thread's fixes.

But none of them disable the inertia scrolling for mouse. I would still like the default Windows mouse-scrolling behavior where one scroll is the same distance no matter how fast you spin the scroll wheel.

EDIT: Apparently you can disable inertia scrolling by enabling/disabling it in Mouse Options under Accessibility, but mine does not have the dropdown like other people seem to have:

This is the thread in question about mouse option inertia scrolling.

In Terminal, run the following command to disable mouse scaling.

defaults write -g com.apple.mouse.scaling -1

Similarly, the following disables scroll wheel scaling.

defaults write -g com.apple.scrollwheel.scaling -1

Take a look at USB Overdrive. With it help I've finally removed scroll acceleration and setup custom buttons on my Logitech m570.