Hello - I am a few weeks in with my Instinct and I get these erratic dips in my heart rate (see below), I'm wearing it simultaneously with my Fitbit Charge 3 which has been pretty reliable. It dips down to the 70bpm range when I'm doing something that might register a 110 or 120 on the fitbit. I try to rinse the back after each workout and following the guidance here (https://www8.garmin.com/manuals/webhelp/instinct/EN-US/GUID-08BC6CE7-EB8F-4392-9B7D-714B54D19499.html) - but its kind of hit and miss in terms of when it does that. I've restarted the device as well - I just wanted to see if it might resolve itself once it gets used to me or not or if anyone has any other suggestions... Thanks!