Went ahead and tried the Smart Control feature in Mission control to maintain a minimum heart rate whilst riding my Turbo Vado 4. All well and good in as much as I paired my Garmin DualHRM to MC, set a target heat rate (120) and set minimum assist to zero so that below the target heart rate there would be no assistance. Went off on a ride including some fairly steep hills and as expected no motor assist below the target heart rate. Once the target was met, assistance started but the level of motor assist was way to low for the hills. As the heart rate went up the amount of assist seemed to remain constant and didn’t increase in proportion to the heart rate. A quick push on the controller button engaged Turbo but that only stayed on for a few seconds before reverting to Smart Control. There didn’t appear to be a way to override the Smart Control and engage extra assist. Another anomaly was that if the heart rate fell below the target, assist continued for quite a while before stopping. Has anyone else tried the Heart Rate feature and if so did the level of assist increase with increasing heat rate? Perhaps I’m doing something incorrect and it’s a picnic issue (problem in chair not in computer). In the end I turned off Smart Control and just manually engaged assist as required.