I have entered the Iowa Wind and Rock Race in April.  It is  gravel race of 340 miles in 34 hours or less and navigation is only by cue sheet. GPS navigation is not allowed.  I'm looking for advice on how you follow the cue sheets efficiently and effectively to stay on course, especially as you get tired and it gets dark.  I know how to read cue sheets, but haven't used them in a race before.  Do you focus on distance to next turn, total distance covered?  Any other thoughts? 
Thanks.
JR

Thanks for the replies. I have had some other sources also confirm that a 4 bike rack is absolutely not an option for the back of a Jetta due the weight limitations of the of the hitch.

We will be buying a 2 bike rack from either Kuat or 1Up USA.

I am looking to buy either a Kuat NV 2 bike rack with a 2 bike add on or a 1Up USA 2 Bike Rack with 2 Add-ons so that I can carry 4 bikes.  Both of these set-ups require a 2" trailer hitch.  My question is, can I use these racks on a Volkswagen Jetta wagon that has a 1 1/4" class two hitch with an adapter to 2"?  The class two hitch is rated to 300 lbs on the tongue and the weight of the racks and 4 bikes will be approximately 165 lbs.

I had someone today tell me that the 1 1/4 to 2" adapter effectively cuts the allowable tongue weight in half, which would be 150 lbs, or slightly under the 4 bike set-up.  Is that advice correct and if so does the 15 lbs  create a significant overload to the capacity of the Jetta and the Class two hitch?

In the Dallas area, there are several Facebook pages set up for advertising used bikes for sale.  I have seen quite a few used name brand bikes selling for $400 this spring, sometimes less.  They usually appear to be in good riding shape.  Check your area for similar pages.  I wouldn't get hung up on a name brand.  It's more important to get a bike that fits and is in good mechanical condition.  Now if you were racing, then you definitely need a xxxxxxxxx brand carbon fiber bike.  Ha, just kidding on that part.

I did my first bikepacking trip last November, a 3 day 300 mile gravel road/trail ride and my gear including tent only weighed 17 lbs and we had to carry clothing for weather ranging from 32 degrees to 70 degrees.  While I carried my food, I did acquire approximately 2 gallons of water along the route.  The weight of that water would have still left me well below 50 lbs of "stuff" on my bike. 
I don't know how much weight your wheels can handle, but as the motor of my bike, I wouldn't have enjoyed the ride very much if I had packed gear weighing 50 lbs for the trip.  To me, that is an important issue.
My first trip was so fun that I have signed up for the approximately 900 mile gravel Ride Across Texas this October.