RE: What if the route book was available 2-4 weeks ahead of the rally?
Many things are required to do recce in the US. The biggest are:
Road use (and abuse)
Insurance
I know that MANY events can't get the roads for another weekend, and expect to have 30 cars run on them 4-5 times and have the roads in any condition to be used the next weekend. Permits are already hard to get.
Insurance costs money...
That being said, as this IS the US, if you throw enough money at it the problem goes away. I can see that dollar figure to be 3-4 thousand PER TEAM to have everything in place to do it, and to pay for road repair, and to "convince" the authorities it is "worth their while".. wink wink nudge nudge....
don't expect it to happen any time in the next 5 years, if at all... Enviro's have lobbys, and big dollars, we're just a bunch of nuts in the woods...