As hoped, 2 hours after convection cooling was re-enabled and normal temps A30, D29 & S31 were restored SQ returned to the jaw-dropping quality it presented at initial power up! There's a lot more to temp drop and SQ than I thought possible. Now I'm curious at what temp does SQ stop improving? Maybe if I could just install a micro inlet valve with a multiple orifice outlet manifold to inject compressed CO2 slowly and evenly into the case across the PCB width. Heh heh, just kidding... mostly ;-)
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!