I use heel lift in the rear foot, but I run even more lift in the front to counteract the UPZ bootramp. I don't run any cant, so I have unused cant wedges. I stack two opposing cant wedges together to make a flat stack, and put that under the lift wedge on the front foot for even more toe lift.
Run whatever seems to work for you; everyone's got a different stance, body type, etc. At those lower angles you're more likely to need that inward cant.
I might get flak from others for this, but I'm going to say that if you're going to try out hardbooting and carving, try starting out with a bit steeper angles, 50 front and 45 rear. The technique you're learning at those lower angles might have to be unlearned later as you move the angles up past 45 degrees.