Counteracting bad tires by … adjusting the preload?

I’m having issues with my 2019 Harley Davidson Street Glide, now that the Suspension Technologies Black Hills suspension has been installed. The bike feels like it’s slipping out from under me, and it was suggested to me to change the preload, to counter for… the OEM Dunlop 407 and 408 tires? Let’s see if it works!

And, since I forgot to mention it in the video, the preload adjustment is as easy as grabbing the cup on the bottom of each shock and turning it with your hand; left for softer, right for stiffer. I showed that in THIS video.

-John