Hi all, Hoping some of you tube-amp guru's can help me out! So I have my SVT2-nonpro at home staring blankly at me. It's depressed. Recently got it serviced, only the amp tech has rebiased it a bit colder than it was before. Unfortunately, that sweet-spot I love has disappeared and the amp is a whole lot cleaner than it was before. Now; My question is fairly simple - once I get the amp nice and hot after some intense use, I got out my multimeter and measured the bias at 60mV. Gievn that it's colder than it was before, would going up to 70mV be okay? I wouldn't be wanting to go super hot or anything, just slightly, to get the amp driving the same way it used to. Good Idea? Would I be damaging anything? Any precautions I need to take? Cheers guys.