B1 Korg Nutube Preamplifier Kit

Does the Korg nutube tend towards microphonics in these kits?

I found one of these full kits un-built but I just learned of that concern. I haven't bought it yet, figured I'd nail that down first.

If microphonics is an issue, what would one do to mitigate it (rubber grommets on board standoffs, for example)?
 
Yes, Yes, lots of options although I don't find it to be an issue in mine. It's a great sounding preamp...I prefer it to many other preamps I have built.

You will get more and better responses in the Korg B1 thread instead of starting your own. It's a big read but many of your questions are already answered there.