I might have seen you the other day at that intersection. I was sitting a couple back and saw a black Genesis heading up Sandy Ridge. Next time I'll expect you to let me out!
I remembered one other place I noticed a definite difference with the collars. If you are familiar with North Bunker Hill road, between County Line and Colfax, where Beeson splits off, there's a dip on Beeson down into a valley, and a sharp curve across a older bridge in the middle of the curve at the bottom of the valley. Especially heading south towards Colfax, at a rapid clip, of course! Before the collars, as your crossed the bridge rounding the curve, the Genesis would tend to want to walk halfway over into the oncoming lane, not being the smoothest curve in the world. After the collars, it stayed much more planted in the lane it was supposed to stay in, without having to correct it back into the proper lane as much. And at probably a higher speed, to boot.