CB Stance

At my school we are told not to backpedal at all becasue you end up falling backwards. For instance in any coverage accept press we are supposed to face the line of scrimmage with with the numbers on our shoulder pads on the inside of teh WR inside shoulder. So we are facing the football and be able to see the ball and our WR. When we drop back like I said we can't backpedal so how we drop back is we are perpendicular to the LOS and the back foot crosses over the front foot andyou push off then bring the foot that was origanally in the front back to the front and continue that until the WR is beside you then you transition. Its kind of like doing Carioca but instead of bring the back foot over then behind just over the whole time. Its a good way to set up once you get used to it and it keeps you from tripping when transitoning. Sorry if it is hard to understand. but to my question. Since I am used to doing this do you think it will be hard for me to adjust to traditional backpedaling if I go to college and play CB. I'm not very comfortable doing that. I feel better just backpedaling regular.