OK, so I've read most of the "wipe out" posts on this forum, some with pretty disastrous outcomes. I've had my + since August and have over 625 miles on it.
At around 108 miles, I had my first nosedive. I was barely moving, maybe 5 mph, when I decided to accelerate quickly for "one last lap" around the park. Found myself flat on the ground with a very deep scraped elbow and bruised rib. That's when I seriously started reading this forum and chalked it up to over-acceleration and over-confidence.
Since then (some 500 more miles), I've learned to accelerate at a slower pace and keep my top speed in the 15-17 mph range. I normally reset the high speed warning when it gets above 17 and if it goes off, I instinctively slow down.
Until today. A beautiful day, sunny, calm, almost 60 degrees, decided to take several rides, charging in between. First ride was uneventful, normal pavement to some off road trails and back, the usual fun time. Second ride, found a challenging patch of off road that was beyond my abilities. I survived the hard part, hopped off and carried the board over a path made of 3-4" rough stones, and was on my way. On the way home however, I breached my top speed near the end and when I arrived I noticed I had hit 19.9 mph, well beyond my normal safe speed.
Then came my third ride. As I was riding out, I realized I didn't reset my top speed and thought to myself, maybe I should stop to do that, but decided not to. I went on a path I've done dozens of times before. A fun ride on some biking/jogging paths and all was going well. I was on a road that gets almost no traffic that connects me back to a sidewalk to my neighborhood, cruising along a bit too fast, when the "new top speed" alarm goes off. I immediately realize "oh $%@#", I'm doing at least 20 mph! My brain goes into slow down mode, but the board has already decided it can't keep me going. Down I go, sliding on pavement at 22 mph (indicated by the new top speed reading, once I recovered). Had my usual protection: helmet (small scratches), wrist guards (left one trashed), and elbow pads (left one slid off a bit, same as my 108 mile slow crash). New left elbow scrape, not quite as bad as my first fall. Four left knuckles scraped up, 1 finger scraped on my right hand, and both knees lightly scraped without ripping my jeans. The left arm of my sweatshirt ripped open, pretty much destroyed. After a few hours, 1 left rib is hurting due to bruising or sprain I think. Overall, lucky for a nosedive at 22 mph. Will rethink adding back my knee pads and gloves with knuckle protection.
Now to the topic. One simple change to the app would have saved me. If I could set a speed warning trigger, with sound, to 15 or 16 mph, I would've never gotten myself into this situation. If FM is listening (or whoever writes/owns the app nowadays), this would be a HUGE help, at least for me, in stopping high speed crashes.
I've always known going too fast is playing with disaster, but not knowing your true speed (and we can't watch our phones easily while riding) makes it difficult to judge when we're close to the limit.
This is the best toy I've ever owned, but I do think FM needs to begin addressing some of the safety issues. I'll be back on my board once I recover and I'll be even MORE cautious than I have been. Everyone please be careful out there!