First, 'former racing driver' doesn't meen squat. I know of a couple that don't know how to ride. He obviously has motorcycle track experience. And the technique he's using should only be used at a track, like the gentlemen above stated. You can still practice what's called 'late apex', meaning you lean into the curve later than 'normal', minimizing your arc and lean angle. PLUS maximizing your view of the curve, which is a good practice on the street. But DO NOT try to do that at the limit, or even trail-braking. On the street, all your braking should be done before you enter the curve. And always look into the curve, so you can identify any hazard in advance. I personally like riding at what's called 'the pace', meaning maximum lean angle, but I don't rocket from curve to curve. I also want to enjoy the scenery. And once you learn how to read curves, you can enter them at pretty much the exact speed you want. And don't forget to leave a bit of safety margin for an unexpected obstacle. I removed all 'chicken strips' on my tires on my first trip, and had nary a hiccup. In fact, my goal to judge corner entry is not to use the brakes at all, and I didn't touch them once in the twisties. That's my goal. If you get too hot, since my goal is not to touch the brakes, just a touch is enough to scrub any extra speed. I still lean the bike completely, which is the fun part for me. But in a safe manner. And yes, I've been to a couple of track school camps for both bikes and cars, meaning I'm comfortable pushing this bike (but not a hyperbike) to its limits if needed. THAT is another very important factor. If you don't have the ability to push your bike to maximum braking and maximum lean angle, you're much more likely to crash, especially if pushing the envelope. Finally, many riders can push their bikes following somebody, meaning they're leaving the curve-reading to the guy in front. But when you're on your own, if you don't have that ability, you better get that skill little by little, especially using track techniques like late braking, etc., which require utmost accuracy. And even the best racers get it wrong all the time and crash. Be safe man.