How many of you utilize data tracking devices/app while playing? Based on casual observation in other threads, it doesn't seem like a very high percentage, but I would have guessed that the golf nerds on here would be huge adopters of the tech tracking side of things. If you don't, why not? If you do, how has it changed your game? If you are doing a review for THP, do/would you feel compelled to use some tracking software to validate your findings or just go with "feel"?