[blackie1491]

Taking a curve reduces the contact patch of your tires, abrout changes such as chaging gears or slamming on the brakes can cause sever problems.
Set your self up with shifting and or braking before the curve.
Slow in, power out.

A gentle braking in the curve will work if at the same time you increase the lean angle. Applying brakes, even gently will stand the bike upright increasing the radius of the turn, not good in most cases.

A steep lean angle leaves you with little room for correction.
A race track has a surface that is clean, better corner visability.
A curve/corner on a road may have hidden hazzard.
The idiot making a u-turn, the rider on a horse, the rider on a bike on the wrong side of the road, a semi taking the turn in your lane. The ladies walking their dogs taking up most of your lane. The farm tractor travelling at 10 kms an hour.

I have had each of these in the past couple of months.
The gravel truck, backing into a driveway, on a blind curve, taking up both lanes, was the one that had me shaking.