Andy, aside from my usual concern with features you can't roll through (although I have to say the cross-overs look far better arranged than the first encounter I had with them) it looks good apart from the first crossover you come to .... the one after the "Mini" table top.
My concern with that is that as you aproaching it from a 90 deg corner, launching off slippy floor, people might find it awkward to hit the kicker straight and true and if they have to lift off on the previous corner they might not get enough drive to clear the gap. Obviously until you drive it you won't know!!! (might be worth trying putting a temp tack marker in place limiting the apex to say 300mm wide (as might be the case with a series of crashed cars there if somebody tried to do something foolish up the inisde of that corner) and see if the worst jumper at your club can clear it, both from a rolling start from that apex and and standing start.
If there is an issue it might be resolved a little by turning the whole feature through about 45 degrees clockwise (so the lander falls into the empty area on the bottom right of your picture). It might just need a grippy surface for the acceleration area and surface of the kicker.
Just a couple of ideas if it does cause a problem.
The other thing that may cause an issue is the divider between the landing area of the 2nd crossover and the lanuch area of the first. Have you got anything that you can use to make a "wall" there to help prevent crossing into the other section (from say a silly attempt at the jump or just a landing bad enough to cause a barrel roll). Has Mark got an advertising board / hording that could be mounted there to act as a catch fence?
The extra landing area on both crossovers will make them far more enjoyable for the majority and certainly help the track flow. The exit from the main straight should let everything sort itself out at the start of finals. Cars should already be spread out by the time they get to the first crossover. Marshals should be easy enough to spread out without hindering the drivers view. Nice clean entry to the straight. All looking good.
How high is the "Mini" table top in relation to the small ramp behind it? Will the 2nd small ramp be clearly visible from the rostrum even by us vertically challenged people? Impossible to tell from a drawing but I thought I'd mention it as your keen for feedback.
On the whole though that layout looks really flowing and a nice blend of slippy and grippy apexes, again to my tastes a nicer layout than the first event. Great blend of flying and driving.
(Disclaimer ....... my comments are aimed purely at Andy (and his team) in response to his request for feedback and nothing else. Please lets not start an off-raod track verses touring track verses Red Bull air race track debate.)