I bought 6 to do some Cobra irons. I built a test 7 iron yesterday. Haven’t hit it yet.
From a club builder perspective,
-Not the straightest shafts. They all rolled thump thump thump on a flat counter top.
-Weights varied from 104 to 109.
-They all wobbled until I found the FLO planes.
-CPM frequencies were decently tight except the heaviest one was stiffer.
-The test club was tipped an inch less than the chart for an R flex 7 iron, but it still came out as a soft S. This might be why people say they are harsh or whatever. I think I’ll like them, though.