I need some advice. I got a Blacktip at Christmas, from our friends at Backscatter because shipping was free. It seemed a good idea to take a DPV course before using it, so I just kept the Blacktip in a spare room waiting for a class to come along. However, the pandemic has classes on hold all over. Having read about the firmware update, I updated the firmware, as mentioned above. I was confused about safe start, though; it does that but then it goes up and down the speeds while dry in the house, which I didn't think it was supposed to do. Anyway, I've also heard people complaining about trim, and now have heard there are new tubes coming that are supposed to fix trim. So, wondering if I have an improperly functioning, poorly trimmed DPV, I went over to a nearby pond today for a few minutes to try it out just under the surface, snorkeling in my paddling dry suit. That was confusing.
First, I walked out into the water (this is freshwater, and there were two DeWalt 12's in it), and the Blacktip sunk. So I walked to the side and took out the weight plate. Then, when I walked back into the water most of the DPV was in the water put the nose was poking out. I figured I'd try it at that weight anyway, so I hit the trigger. It did it's jerky thing, but didn't seem to want to go. Eventually it did get going. I headed off across the pond, and then it stopped and started to sink, and I realized I was tied into something that was now negatively bouyant, with only the air in my dry suit for bouyancy. That was interesting. But I worked it out, although it still seemed erratic on the trigger. I noticed that the screen was entirely lit up: all white dots. That didn't seem right at all. So, what would be the best thing to do? Just reinstall the firmware again and hope it takes better?