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Mark pitted a 2020 Callaway Mavrik super-game-improvement iron against a muscleback/blade from the 1980s. He used a statistician to help, and tested a decent number of shots, though at the beginning he said about 40 with each club, so spread across three types of quality of strike, that's not a "huge" data set. Anyway, the data… Dynamic Loft: Mavrik Max: 24.6° (7-iron) Top Flight: 24.4° (6-iron) Clubhead Speed: Mavrik Max: 87.5 MPH Top Flight: 88.3 MPH Here's how Mark defined the three categories of strike: I think the results will surprise many. Ca