While I can't remember specifics I would've thought I might have found at least 'slight' improvements. However, it must be remembered that my 200 is convection-cooled with inlet/outlet airways which will necessarily be VASTLY more effective than an outta-the-box non-ventilated sealed enclosure! Also I remember specifically it cools dramatically better wall-mounted rather than surface mounted. I specifically remember that the wall-mounting plate responded significantly better temp-wise to having a significant (+ or - 100mm) tall swath of acrylic material removed left-to-right as well as having much of the acrylic that was covering my cold-air intakes 'unshrouded', ie; removed from the cold-air intake path. But all of this is remembered perfectly as written in the original temp-testing posts with pics.
Statements in my posts are opinion only, not to be construed as fact. Any projects I engage in are at my own risk! Their outcome cannot be assured and may result in success, small/no change or catastrophic failure. I encourage no one rely on anything I say or do as gospel and to realize your mileage may vary!