Anyone running 19” wheels?

They should work but I think you might have a hard time finding a tire that works. If you are going to try to keep the same rolling diameter the side wall is going to get pretty short on the 19. They'll also seem to be available in cheap import crap or very expensive so the wheel savings might get eaten up in the tire cost. 19's tend to be harder to find too if you needed one on the road.

You must not have looked for tires recently. Finding 19's is easier than 17's and 18's now, especially when you get above about a 255 for width. When you get up around 295 there are more options in sizes with 19's than 18's, one of the reasons I've started looking at some 19" rims for the back of my car.

When I bought the 275/35/18's and 295/35/18's for my Duster there were a bunch of different tire options for me. Now there's like 2 that cover both of those sizes. In 19" it's a piece of cake. Not to mention if I do the "reverse mini-tub" on my Duster I may be able to go to a 305, and that would pretty much require a 19" in the back to get that size.