I planned to do a comparison of my Vicmarc VM120, Oneway Stronghold, Axminster Evolution and SuperNova2 chucks but after just receiving the later I have to point out in advance how disappointed I am with it. What I immediately noticed was the fit and finish wasn't like any of the others. It has rough unfinished edges and the runout was easy to spot visually. Then I noticed it was marked "Made in PRC (China)". They go to great lengths marking elsewhere designed in New Zealand and USA. I waited a long time to get a SuperNova2 with a M33 direct thread but eventually found one across the pond at considerable expense in shipping. I usually don't return items but this will probably be one exception.
PS I had a SuperNova2 previously that was purchased second hand but it required an insert. I recall it being of much better quality.