A tune for the R5 would be nice!
If it is sliding around under braking bump up the braking sensitivity, or adjust the brake balance. I've never driven the R5 myself, but from the sounds of it that could be your issue. I suppose if you give me a little better description of what exactly its doing I could try to help you out, in a PM of course (Ya happy Ford? lol)
And congrats!
Am i happy? I'm fartin rainbows over here hehe. And whats an R5? Im not familiar with that one but i would gladly try tuning it if its anything like the GT350R.