Good review. I like the use of multiple testers. But!
You mentioned that the Nano just doesn’t have enough torque to jump back from misses out. I do not come to the same conclusion on a fresh house shot. In fact what I like about my HRN is that misses to the right seem to make it back to the pocket. It may be my house shot , may be that I am throwing 16lb, may be the layout , or a combination of all that is the reason for my difference in opinion but I feel the ball is much stronger than indicated. I did notice that all the testers are all throwing 14 lbs balls. I would be curious to see if your review would be the same if testing was with 15 lb balls since as the weight goes up so does the DIFF