My take on it would be along these lines (I think);
In the first case, since reconfiguring the course it would appear that this is the first time that the Wokingham beat the Jubilee, although they're often closer than you'd expect, as it wouldn't be unheard of for the handicap to have a couple of group horses running of obliging weights, the raw times are as follows
2009 = Wokingham by +0.76 secs
2008 = Jubilee by +1.04 secs
2007 = Jubilee by +0.10 secs
2006 = Jubilee by +0.03 secs
High Standing, Asset and Rock of Rochelle all beat Art Conniseur, but using 1L = 0.17 secs, so too it would appear did Markab racing on the stands side.
I don't normally dabble in median times but took the first six home on either side and reckoned the ground was riding +0.82 fast on the far side and -0.33 slow on the stands side. Both od these figure would fall within the description of 'Good', but as has been noted previosuly, Good ground can cover a spectrum. At six furlongs the far side seem to have enjoyed an advanatge of about 6.75L's, which is obviously not insignificant in a sprint. It might be fairer however, to say that some of the midfield runners had given up on the stands side, and to use the first 3 home instead. Obviously using their times is going to make the ground a bit quicker and probably more accurate in terms of what the course was capable of being ridden to
Far Side = +1.38
Stands = +0.34
which is worth about 6.25L's at a mile. At race distance this is about 4.5L's. By virute of having to largely carve out his own trail and seemingly beating Art Conniseur and running about 0.62 secs behind High Standing, Markab has run a big race to get to where he has, as indeed has Prohibit. I'd estimate that Markab has got within 3.64L's of the winner on ground that was against him to the tune of 4.25L's.
A few jocks were mentioned as swithcing their mounts from the stands to the far side, even though none of them did so to any effect finishing largely in the midfield, but at least you could credit them for gettign the call right even if the switch proved to big an obstacle to overcome. So credit of sorts to messrs
Crowley, Munro, Callan and Lane - special mention though for Richard Hughes who appears to have been noted for going the other way and switching from the far side to the stands side on Nota Bena who finished 16th and 3rd in his group.
In terms of the amount of water that's gone down and how the draw bias has been reversed, you'd probably need to do the same exercise with the Hunt Cup, and Britannia, as the second named present a half way marker in the story of the migrating draw bias.
One suspects that if history is anything to go by and we actually get a spell of good weather some time, that Newmarket will do the same for the July meeting, which from a punting point of view could take the first couple of races on the card out of the equation each day until you know where you are