Interesting to compare the truly last aussie twins
Roche had a bit better volley,overhead and backhand while Newcombe had a slughty better lob,forehand and serve.Their matches had unsurpassed density and were as tough as Connors vs Mac matches although well spirited
Newk advantage over Tony was being mentally quite stronger and free of injurues, which can make the difference (IMO even if Roche was never injuried he would never have Newcombe' s record due to the mental strengh gap between both)
Now, put them together and you easily have the most formidable doubles machine of all time.
I always had that strong feeling that both were great by separate but they were unbeatable together.like Dumas mousketeers or like Sundance and Butch