In that instance it would depend on when you decide to evaluate the data. You could take some notes, like "Swing 1, 7 iron on Hole 1" for each swing for which you record data. You can collect that data all day long, and as long as you don't look at it while you're playing, that is specifically allowed.
So basically it's okay to use it only when practicing on the course not when actually playing a round on the course. Because I do want to get carry distances for my clubs off turf conditions with real balls as opposed to mat conditions with range balls. Unfortunately it won't store tempo data so... it'll be course practice w/o score.
Where’s this ‘hate’? I did this method and am currently doing it again as it is a bit easier on my back ( for me) and I hit much more consistent strikes using it. So that’s that. I’m very curious to read what people who know a hell of a lot about the mechanics of a golf swing and body mechanics in general say when they analyze it. Unfortunately you’ve taken the Jim attitude that any ‘negative’ remarks about it are of contempt. They’re not.
@iacas and others who are very knowledgeable about golf and body mechanics have stated they feel this method limits power. Nobody including Jim himself has presented anything to show it doesn’t.