Nice video for sure!
This was the video that taught me how to retrohale. I do it with every cigar and it really depends on the stick when it comes to how much smoke I blow through my nose. Some of them are too harsh to push more than 5-10% of the smoke from any given puff through the sinuses but there are sticks you can do it on every puff with a full mouth of smoke.
The only NC I can think of off the top of my head right now is the OR El Triunfador. Every other stick I can think of are CCs which, from my limited experience, seem to be much smoother than NCs.