Wait, did the original from joamat have the servo trimmers? If so, crazy as that is what I did to my T2 to fix the biasing shenanigans... Assuming you did, can you describe your biasing procedure and give an idea of how far over the original 6.2K you went? I am glad to share pics of mine and procedure as well.
How do the new darlington servo transistors fair in terms of gain? More or less than 2sc3675?