My board “pulsed” same as starrett67. Same mileage coincidently ( or not) too. Seems happened going uphill which I was led to believe 20% was no problem. I weigh 165 so not near weight limit. After that today I was riding on flat and normal conditions on mission mode and I felt that slippage or pulse again! That really got me worried when I was riding not even 10 mph and board seemed like it shut down. It started to wobble (or lose balance) I would have eaten it if I was a less experienced rider I’m sure ,..anyway I stayed on board and was back up again but quickly pulled over to immediately send diagnostic to FM. I don’t know if they got it or last nights diag. as they are closed. Maybe they only get the last one sent idk? My board has 350 miles only. I’m sure it’s under warranty however this is a downer as rider confidence goes, and as it’s my daily ride and transportation. Lastly, if sent in am I liable for shipping cause I’m not shelling out 80 bucks for something under warrently not to mention how long I’ll be without board. Any advise.. please be gentle. Lol