For some time I have had an AP1 8 iron with R300 Dynamic gold and standard length. Normal distance is about 140.
Yesterday I picked an AP2 8 iron with Project X 6.0 and 1/2" longer with the intent of possibly reshafting.
From what I read, 6.0 is the equivalent of S400 DG.
I went to the range with the AP2, AP1 and an Apex Plus (with a #4 shaft, which is stiff). I was getting 150 yards total with 140 carry on the AP2. The AP1 was 140 total and 135 carry. The Apex was 135 total and 130 carry.
Understand the shaft length being 1/2" longer could account for more distance but what I find odd is getting better distance with what amounts to a stiff plus shaft vs regular. Doing the math, there should be about 2 points difference in swingweight net (3 points for the shaft and subtract 1 point for the Project X shaft vs DG).
The funny thing is the Project X did not feel stiff at all.
Could somebody possibly soft stepped the Project X?