Re: Speed up the Courts
Part of the problem for me is that events feel an individual pressure of homogenisation by the nature of the calender. For example, last year Tokyo was blisteringly quick, and Shanghai was insanely slow.
Federer whined about Shanghai, end result it changed for this year to a medium/fast (not an anti-Fed comment, just what happened).
Tokyo decided to be better prep for Shanghai, they needed the same surface. They're now much more medium.
End result: both more towards the middle.
You see the same all over the calender - only really the slams have any independent movement on this (perhaps also Miami/IW, because they sit together and alone in the calender). So many events are competing for players, and as preparation for bigger forthcoming tournaments is one method of appeal.
The only answer imo is for the ITF/ATP to sort out the calender into distinctive and logical sections, so events of similar speed are clustered together and don't feel that homogenising pressure. Slow hard court section, we have that with Aus>IW>Miami. Fast hard court = US summer. Indoors .... all quick.