Going through my local run this afternoon, I had a mother of a tankslapper. Was coming around a 55 kmh corner and bang, started small and turned severe very quickly. Went on for so long - about 2 seconds i think, felt like 30) that I thought I was coming off, as I keep hearing about this point of no return business. All I know is that I held on with a death grip trying desperately to hold it straight. By the time it regathered I was coming off the road onto leaf litter and dirt beside the road. Panic is a funny thing. It's as sharp as anything but all fuzzy at the same time. I can't even remember which corner it was now, though I think I know now/have worked it out. I'm not sure what started it, but I think it was from corner or two before when I overtook a car and something about the car bothered me - had some of the signs of an unmarked but also signs of definitely not an unmarked, so I wasnt to focused on the road ahead. I think this led to taking a bad/wide line into a corner that I know is a bit suspect with a bump and I usually try and stay as tight as possible for it. I was also going a few k's faster than usual, advisory of 55, so doing 55 on the dot rather than 50-51. I think its more of the first and less of the second, but i'll certainly be paying more attention and slowing down next time. Im going to go clean myself up now.