Hi,
When setting heart rate zones directly on the Edge 530 (not through Garmin Connect) based on %LTHR, for zone 5 any minimum value entered say 105% is automatically cut to 100%. It would be correct to cut to 100% when using percentages of the maximum heart rate. But, this is certainly wrong when using percentages relative to the lactate threshold. Also, in setting the ranges of heart rate zones 1-4 relative to %LTHR directly on the Edge 530, I got seemingly inappropriate messages, that the entered values are out of range. My Edge 530 has the latest firmware v. 5.10. I hope this message will reach Garmin's software development department. When contacting Garmin's support via e-mail and explaining the problem over three iterations, I always just got the response, I should use Garmin Connect, which I don't.
Best regards,
Thomas