First time was on Parker/Cleveland wheels after I flew the aircraft for a few hundred hours. The lower and more uniform rolling resistance made ground handling very easy AND less brake wear as I was no longer stabbing the brakes to keep the nose pointed in the correct direction.
Somewhere along the way Van's switched to Matco wheels, but that presented no issues -- I had the new wheels modified before the first flight.
And of course, working with Alan is always a pleasure -- great guy, great products, great customer service.