Interesting. I guess it makes sense to hollow on the backside as you get a better view of where you are placing the tool.
PS: Your embedding was just fine 
Just a bit off topic, but hollowing. There's a hollowing system out of Australia that agrees that cutting on the backside allows a better view of your work. However, their solution is not to reverse the lathe direction, but to flip their tools over so the cutters are on the bottom of the tool. You get the same effect.
