http://www.modernracer.com/tips/heelandtoeshifting.html
Printable View
Heel-toe is about changing down gears without upsetting the cars' balance at that particular moment by jolting the drivetrain which may invoke locking under brakes and mess up your turn in and miss the apex.
Simply put, reducing speed quickly and smoothly, being in the right gear to power out of the corner and shifting weight in a measured fashion.
Thanks for all the advise guys! Went out for a little drive last night and I can sure say that I'm more confident that before :)