That and the fact that few tour pros are using them. Likely due to the stickers based on Bryson’s example today.
Oh, and that one time a tour pro had a big snafu for having the stickers on his club during play in a tournament round.
https://www.google.com/amp/amp.pga....s-two-clubs-lead-eight-shot-penalty-ben-crane
i have no dog in this fight. i have enjoyed interacting with you.
but how are the stickers a failure?
are the stickers annoying? maybe for you, maybe for pros who don't want to have to add stickers to 13 clubs then take them off before a round. but not everyone is annoyed by the stickers.
i would think a failure would be poor readings, because that is what the system is designed for: reading and communicating data. a failure might be a proper label for some of the ernest sports units, or the swing caddie sc300, which seem to be found lacking when compared to more reliable units.