On all of my DMs I put an oring on the top hat part of the bolt and that works great. Shoot evil in winter no problem while all other dm12 break paint. I'm going to try that oring in the bolt insert on my nt.
I just got my bolt and can back from Pooty51 from being polished and anno'd and it shoots smoother and reduced the kick. Even made it a little quieter. Still want to send it to BWing and have it tuned. Definitely recommend having it done for your NT as well
__________________ STEP YO GAME UP SON! DONT HATE ME CAUSE YOU AINT ME
just a matter of sweet spotting the lpr, dwell and then the hpr for the correct fps. Im sure billy tunes the heck out of it but it's not like a NT where he actually modifies the guns and switches parts.