The only time EBD really becomes an issues is when trail breaking into a corner. It tends to not like what's going on and wigs out a bit. @
CSG Mike can speak to that.
Other than that, I've seen all kinds of videos where people are sliding these cars around like mad men with no problems. If the nannies weren't going off all the way (aside from EBD and ABS) this wouldn't really be possible, even in the wet.
Nathan