I found one of the Brey Krause mounts on eBay for a good price. Keep looking, they show up in the classifieds here, at PCA and eBay from time to time. I really like the look of the quick release mounts that wrap around the extinguisher but they are pricey so I've held off. This mount hasn't interfered any of my passengers at all and the only noise is an occasional rattle from the pin that would need to be pulled in order to use the extinguisher.
For NNJR PCA HPDE events, fire extinguishers are only required in the higher run groups, so I don't need it yet.
