I really think you are on to something with this concept. In the real world, maps and GPS maps do not allow one to travel thru the back country with the certainty that they are going the right way. No matter how many sources I purchase I am often left to pick between conflicting indications of which path is the thru route.
Your system of GPS tracks, roll-charts, and route sheets are right on target for those unfamiliar with distant parts of our county's vast public lands, to safely traverse with the knowledge that they are headed in a direction that takes them to their desired destination. With the increased availability of dependable back country transportation (4 wheelers, dirt bikes, ATVs) and the ever-increasing use of the back country, the information you offer is invaluable to those with wanderlust in their hearts.
Too darn bad you do not offer a product for Mac, yet.
I can see a future Scenic Byway, Backcountry Scenic Byway, Historic Byway, etc.. series of CDs also. The publication of these maps and information will also assist those so inclined to be able to prove-up the existence of historic roadways the Federal Government would otherwise deny and close for the benefit of future wilderness designations.