Teflon tape and grease work really well with the T47 bottom bracket. Removes unnecessary play from the thread.
Which play?
Honestly, I was surprised by the quality of the T47 threads.
BB went in by hand without any issues and I just needed the torque wrench to tighten it.
(actually I am on my 2nd T47BB in that bike right now, since my SRAM DUB, which I just switched from my old bike, just gave up. And that after less than 12 months. So, no more SRAM DUBs for me, here my money goes to quality equipment)