I like the 19 20 combo too. It's just that i drive it everday and the ride already leans towards firm as it is. I like the firmness it has now i just don't think i'd like anymore. Plus one of the main reasons i got new wheels is because my old front ones were bent from potholes. And 19's on the front and especially the 20's on the back would have even less rubber to cushion them. But the 19 20 combo does look amazing.