Nest scroll wheel action inside a scroll wheel action?

Nest scroll wheel action inside a scroll wheel action?

Hello,

I am using tilt + scroll wheel push/pull (endless loop for scroll down / up) to do a free-scrolling type interaction and it's working very well. The only problem is stopping the scroll. Right now I have to either tilt the mouse back or assign a button that will "Stop All Loops". This is suboptimal b/c it 

1)  adds unnecessary wear to the mouse button
2)  makes stopping less intuitive.

Is there a chance to add a scroll wheel event inside a scroll wheel event? We can nest the button events inside one another, so maybe there is nothing stopping from doing the same with scroll wheel? This way it would be enough to just touch the scroll wheel lightly to "Stop all loops" and then you can even scroll back / forth and it will be a perfect free-scrolling functionality.

Attaching a screenshot that I hope can explain what I have in mind.