At the steeper angle, the canopy will descend faster but the apparent wind striking the foil remains fairly constant, although it will shift momentarily as the maneuver begins and ends. With most canopies, the trim of the suspension lines results in a tilt where the canopy slides about three feet forward for every one it slides down - a 3 to 1 glide ratio. Flatter trim will let a canopy fly further, but the penalty is that the canopy is not pressurized as well as a more steeply trimmed canopy, resulting in a foil more vulnerable to turbulence. Steeper trim increases descent rate and pressurization but sacrifices glide, and some flare capability is lost. When you pull the toggles down, you change not only the angle of attack, but the shape of the wing itself.
Camber refers to the amount of curve across the top of the wing.
Wings with a lot of camber generate a lot of lift at slow speeds but create a lot of form drag. If you pull the brakes down and hold them steady, this change in camber will affect how your parachute flies. The descent rate will decrease. So will the forward speed. Modern canopies generally get so much of their flare from angle of attack that your best flare will be from full glide.