Review on KMS7724: Convenient Self-Adhesive Measuring Tape for Left & Right Reading by Patrick Burns

Just finished installing on Kreg Top Track for my cross slide. I quickly rubbed down the channel in the top rail with isopropyl alcohol to remove any debris. The tape came off with no problem. The glue is strong. I don't think there will be any problems with this. I use Kreg Production Stop in this application. I bought LR and RL tape. Good product! I have a question purely out of curiosity. In the image, a black diamond is printed on the tape just past the 19-3/16" mark. Why does she have to be on the tape? I've noticed that she's left to right and right to left on the tapes. Strange.