Ok so i have been doing a bathroom remodel and kinda just learning as i go. I have the floor replaced and new tile finished. Tub set it with a new shower valve and hardware ready to go for that when i get the walls done. Question is, i didnt realize they dont have tile that will roll over the edge of the 1/4" backer board unless you want 1970's white or beige... I planned on using an earth tone 12x12 tile with the bull nose tiles around the edges. Well the bull nose tiles would just go flush to the backer board but go over the edge so i would have a little bit of extra height where the shower tile starts. I COULD run a bead of caulk there and it would probably make it not that noticeable. Or i could just prep the green board i used and tile over that without using the backer board. Would this work? I heard someone from lowes say i should have just bought 1/2" backer board and put against the studs in place of the dry wall but i am not ripping that out again and wasting another weekend. My dad has built a house a long time ago and is a diy kinda guy and said he would think it should be just fine tiling over the walls. What is the general consensus? I am sure one is better than the other but can it be done without much issue as long as i dont let and cracks go un fixed?