First of all, a little background. I recently upgraded my irons to the new TM P790 @90. Now the TM has a swing meter of 3, and I experimented with several (affordable) balls of different meter speed to try to find a combination that would let me dings consistently. I found that a ball with a meter of 3 gives me the best result. I decided to get the TM TP5 @7 because it’s relatively cheap and has good stats.
Having decided on a ball, I diligently set out to map my shots. I chose Bethpage #10 because it’s virtually flat from tees to greens (difference of 3ft between greens and tees IIRC). The wind was 2-4 mph @3-3:30. Mapping shots from tees is easy enough. I then proceeded to map shots from fairway as well, hitting shots with NS and FS. I will give a specific example: 5I 195, 183.
Having done with all the mapping, I decided to play a CCTH round to test my numbers. Luckily, my CC has an ongoing CCTH tournament, with the current round at Harbor Town Links. The first hole, playing from the fairway, has 181 to the pin with a 3ft elevation. Wind is 3-5 mph @9-9:30. Easy shot right, especially with my newfound data? A FS 5I @98% should be in fairly tight. I wound up, dinged the shot.......and it went for 191 yards. Restarting again, this time I tried a FS 6I and it went for 176.
So, what’s the point of investing time and effort in mapping balls/clubs if they don’t behave consistently?
PS: I took the precaution of removing all apparel, wearing only basic stuff, before starting mapping clubs so there was absolutely nothing that could affect my shots.