My power ebrake functioned like abs when i did a panic stop with it at 25mph. Well sort of, they locked up... Then released... Locked up... Released... Till the car stopped.I'm not to up on the electric parking break but with a manual parking break in my MB I just engage it and that locks the back wheels. Was never sure what the fronts were doing but I would guess that ABS is still operating and maintaining some sort of steerage. Not sure how this would work for you. The parking break is a very useful tool and going to this electric one is the only thing on the OB and many new cars I don't care for. Could be I just need to get used to it but for the life of me I don't know why you would pull out a purely mechanical emergency break. Anyway just a thought, I don't live where snow is that much of an issue.
Wish I had a manual one.