Going to butt in and give my two cents here...once you get used to the heel, you'll never go back. That being said, I am jealous of the heel toe shifter on my buddy's road star. The heel portion is more like a small paddle blade, rather than the long piece that I have on my Royal Star. I have thought about going to that.
You never miss the back end being so small and it leaves plenty of room for your foot.