The reasoning behind the non-flip open sideplate on the USDM Calcutta D? It's to maximize rigidity in such a compact reel. Similarly, no quick access screws are provided to break down the reel to access the brakes all in an effort to maintain the same, compact scheme of the reel. Additionally, by providing the quick breakdown screws, you run the risk of scraping your fingers during a retrieve because the handle has been pulled in closer to the reel's frame.