For the GWH-101 board.... 2SC1438 I have seen threads with KSC1845F or the beefier KSC2383Y. Is there a preference I should follow? Also, on the GWR-101 board....2SC1647. I have seen KSC1616 (circa 2015) but lately KSC2383Y. Since I have a drawer of 2383's (O and Y) is that ok? Also, since I am in here, its a biotch to get in here, I was leaning heavy to pulling the working A798s for matched sets of KSA992's.....depending on where and when you look for that, sometimes its a 'leave it' item, other people practice shoot on site.... please advise?