Is it worth spending another $110 for the O/R Prochamber? MAC O/R H runs $169 and Prochamber runs $279. I'm assuming most guys will say yes because I see more guys running Prochambers, but I'd like to see what everyone thinks. I'm running weld in Flows right now but I plan to upgrade to a full Flow or MAC catback soon. So anyone with a Flow or MAC catback, lemme know your experience on O/R H's vs. Prochambers. Thanks.