The problem we’ve been finding is that nobody carries Birel, at least in the SE-Wisconsin area. I’ve seen a couple Fullerton’s from McAndrews, and Ricciardo is carried by a guy but he isn’t exclusive to them and supports plenty of karts so he’s usually on OTK equipment. Imo, you can’t go wrong with OTK if you’re willing to put up the money. I know Haase is trying to make a comeback in North America; you can grab a brand new chassis for $3,500, there’s just virtually no shops around the US for them as far as I’ve seen. Again, it depends on where you are.