Both rackets have nearly the same beam widths, static weight, balance, etc. Whether it's the regular or "tour" version of each, what racket provides more power? What are the other differences in these rackets? It seems many have great things to say about each, but of course, the 4D 300's are more popular with their recent release. Is the 4D 300 a significant improvement in power over the old 300G? Does it allow for better control than the M-Fil 300 or the regular Aerogel 300? thanks for any feedback!