I didn't see that particular sighting but I've been trying to understand these triangular craft reports for a while now. We get very little activity over Dartmoor compared to what you lot in the States seem to experience, so I mostly follow along rather than contribute firsthand accounts.
What I'm curious about is whether the craft made any sound at all. The accounts I find most compelling are the completely silent ones, it seems to come up again and again with the triangle reports specifically. Also did it move in a straight line or was there any of that sudden direction change behaviour people describe?
I know I'm only a beginner at all this but I've read enough abduction accounts to know that Lake Michigan has come up before in connection with strange aerial activity. Was there anyone else with you when you saw it or where you on your own?