I agree bob. But I mean he does those shots nowadays rare, but when he was young he was shooting them a lot. He now uses finesse than brute force and ability what he used to do. Anyways my point is that he is best keeping his form and judging hard speed shots when they need to be used. Trump and Robertson like to use power spin shots. Ronnie is more power stun guy. So he really keep tip hit accuracy suberb, no matter what speed he uses.I don't think Ronnie hits the ball as hard as some. He doesn't do the Trump/Robertson shots for the most part. Also, a very important part of his technique on a lot of power shots is that he significantly bends his cue with his chin.
Also it does not seem he hit balls hard(on video, i think video is deceiving) because he does it so smooth. One can see when Trump or Robertson hit balls hard though.